diff --git a/Doxyfile b/Doxyfile
index 5e98d3b6f..5812e7017 100644
--- a/Doxyfile
+++ b/Doxyfile
@@ -205,7 +205,8 @@ ALIASES                = \
     "requires_gl40=@xrefitem RequiresGL40 \"Requires OpenGL 4.0\" \"Functionality requiring OpenGL 4.0\"" \
     "requires_gl41=@xrefitem RequiresGL41 \"Requires OpenGL 4.1\" \"Functionality requiring OpenGL 4.1\"" \
     "requires_gl42=@xrefitem RequiresGL42 \"Requires OpenGL 4.2\" \"Functionality requiring OpenGL 4.2\"" \
-    "requires_extension=@xrefitem RequiresExtension \"Requires extension\" \"Functionality requiring specific OpenGL extension\""
+    "requires_extension=@xrefitem RequiresExtension \"Requires extension\" \"Functionality requiring specific OpenGL extension\"" \
+    "extension{2}=<a href=\"http://www.opengl.org/registry/specs/\1/\2.txt\"><tt>\1_\2</tt></a>"
 
 # This tag can be used to specify a number of word-keyword mappings (TCL only).
 # A mapping has the form "name=value". For example adding
diff --git a/src/AbstractImage.h b/src/AbstractImage.h
index aad37c9c0..151b79421 100644
--- a/src/AbstractImage.h
+++ b/src/AbstractImage.h
@@ -70,7 +70,7 @@ class MAGNUM_EXPORT AbstractImage {
             /**
              * Depth and stencil component. For framebuffer reading only.
              *
-             * @requires_gl30 Extension <tt>EXT_packed_depth_stencil</tt>
+             * @requires_gl30 Extension @extension{EXT,packed_depth_stencil}
              */
             DepthStencil = GL_DEPTH_STENCIL
         };
@@ -87,7 +87,7 @@ class MAGNUM_EXPORT AbstractImage {
             /**
              * Each component half float (16bit). For framebuffer reading only.
              *
-             * @requires_gl30 Extension <tt>NV_half_float</tt> / <tt>ARB_half_float_pixel</tt>
+             * @requires_gl30 Extension @extension{NV,half_float} / @extension{ARB,half_float_pixel}
              */
             HalfFloat = GL_HALF_FLOAT,
 
@@ -169,7 +169,7 @@ class MAGNUM_EXPORT AbstractImage {
              * Three-component BGR, float, red and green 11bit, blue 10bit,
              * 32bit total. For framebuffer reading only.
              *
-             * @requires_gl30 Extension <tt>EXT_packed_float</tt>
+             * @requires_gl30 Extension @extension{EXT,packed_float}
              */
             B10GR11Float = GL_UNSIGNED_INT_10F_11F_11F_REV,
 
@@ -178,7 +178,7 @@ class MAGNUM_EXPORT AbstractImage {
              * component 9bit, exponent 5bit, 32bit total. For framebuffer
              * reading only.
              *
-             * @requires_gl30 Extension <tt>EXT_texture_shared_exponent</tt>
+             * @requires_gl30 Extension @extension{EXT,texture_shared_exponent}
              */
             Exponent5RGB9 = GL_UNSIGNED_INT_5_9_9_9_REV,
 
@@ -186,7 +186,7 @@ class MAGNUM_EXPORT AbstractImage {
              * 24bit depth and 8bit stencil component, 32bit total. For
              * framebuffer reading only.
              *
-             * @requires_gl30 Extension <tt>EXT_packed_depth_stencil</tt>
+             * @requires_gl30 Extension @extension{EXT,packed_depth_stencil}
              */
             Depth24Stencil8 = GL_UNSIGNED_INT_24_8,
 
@@ -194,7 +194,7 @@ class MAGNUM_EXPORT AbstractImage {
              * 32bit float depth component and 8bit stencil component, 64bit
              * total. For framebuffer reading only.
              *
-             * @requires_gl30 Extension <tt>ARB_depth_buffer_float</tt>
+             * @requires_gl30 Extension @extension{ARB,depth_buffer_float}
              */
             Depth32FloatStencil8 = GL_FLOAT_32_UNSIGNED_INT_24_8_REV
         };
diff --git a/src/AbstractShaderProgram.h b/src/AbstractShaderProgram.h
index 9512cca73..917083915 100644
--- a/src/AbstractShaderProgram.h
+++ b/src/AbstractShaderProgram.h
@@ -166,7 +166,7 @@ class MAGNUM_EXPORT AbstractShaderProgram {
          * @note This function should be called between loadShader() calls
          * and link().
          *
-         * @requires_gl30 Extension <tt>EXT_gpu_shader4</tt>
+         * @requires_gl30 Extension @extension{EXT,gpu_shader4}
          */
         void bindFragmentDataLocation(GLuint location, const std::string& name);
 
@@ -236,7 +236,7 @@ class MAGNUM_EXPORT AbstractShaderProgram {
         /**
          * @copydoc setUniform(GLint, GLint)
          *
-         * @requires_gl30 Extension <tt>EXT_gpu_shader4</tt>
+         * @requires_gl30 Extension @extension{EXT,gpu_shader4}
          */
         inline void setUniform(GLint location, GLuint value) {
             glUniform1ui(location, value);
@@ -245,7 +245,7 @@ class MAGNUM_EXPORT AbstractShaderProgram {
         /**
          * @copydoc setUniform(GLint, GLint)
          *
-         * @requires_gl30 Extension <tt>EXT_gpu_shader4</tt>
+         * @requires_gl30 Extension @extension{EXT,gpu_shader4}
          */
         inline void setUniform(GLint location, const Math::Vector2<GLuint>& value) {
             glUniform2uiv(location, 1, value.data());
@@ -254,7 +254,7 @@ class MAGNUM_EXPORT AbstractShaderProgram {
         /**
          * @copydoc setUniform(GLint, GLint)
          *
-         * @requires_gl30 Extension <tt>EXT_gpu_shader4</tt>
+         * @requires_gl30 Extension @extension{EXT,gpu_shader4}
          */
         inline void setUniform(GLint location, const Math::Vector3<GLuint>& value) {
             glUniform3uiv(location, 1, value.data());
@@ -263,7 +263,7 @@ class MAGNUM_EXPORT AbstractShaderProgram {
         /**
          * @copydoc setUniform(GLint, GLuint)
          *
-         * @requires_gl30 Extension <tt>EXT_gpu_shader4</tt>
+         * @requires_gl30 Extension @extension{EXT,gpu_shader4}
          */
         inline void setUniform(GLint location, const Math::Vector4<GLuint>& value) {
             glUniform4uiv(location, 1, value.data());
diff --git a/src/AbstractTexture.h b/src/AbstractTexture.h
index 319d84adf..00f94856c 100644
--- a/src/AbstractTexture.h
+++ b/src/AbstractTexture.h
@@ -119,56 +119,56 @@ class MAGNUM_EXPORT AbstractTexture {
             /**
              * (Non-normalized) unsigned byte
              *
-             * @requires_gl30 Extension <tt>EXT_texture_integer</tt>
+             * @requires_gl30 Extension @extension{EXT,texture_integer}
              */
             UnsignedByte,
 
             /**
              * (Non-normalized) byte
              *
-             * @requires_gl30 Extension <tt>EXT_texture_integer</tt>
+             * @requires_gl30 Extension @extension{EXT,texture_integer}
              */
             Byte,
 
             /**
              * (Non-normalized) unsigned short
              *
-             * @requires_gl30 Extension <tt>EXT_texture_integer</tt>
+             * @requires_gl30 Extension @extension{EXT,texture_integer}
              */
             UnsignedShort,
 
             /**
              * (Non-normalized) short
              *
-             * @requires_gl30 Extension <tt>EXT_texture_integer</tt>
+             * @requires_gl30 Extension @extension{EXT,texture_integer}
              */
             Short,
 
             /**
              * (Non-normalized) unsigned integer
              *
-             * @requires_gl30 Extension <tt>EXT_texture_integer</tt>
+             * @requires_gl30 Extension @extension{EXT,texture_integer}
              */
             UnsignedInt,
 
             /**
              * (Non-normalized) integer
              *
-             * @requires_gl30 Extension <tt>EXT_texture_integer</tt>
+             * @requires_gl30 Extension @extension{EXT,texture_integer}
              */
             Int,
 
             /**
              * Half float (16 bit)
              *
-             * @requires_gl30 Extension <tt>ARB_texture_float</tt>
+             * @requires_gl30 Extension @extension{ARB,texture_float}
              */
             Half,
 
             /**
              * Float (32 bit)
              *
-             * @requires_gl30 Extension <tt>ARB_texture_float</tt>
+             * @requires_gl30 Extension @extension{ARB,texture_float}
              */
             Float,
 
@@ -270,7 +270,7 @@ class MAGNUM_EXPORT AbstractTexture {
              * Four-component RGBA, unsigned non-normalized, each RGB
              * component 10bit, alpha channel 2bit, 32bit total.
              *
-             * @requires_gl33 Extension <tt>ARB_texture_rgb10_a2ui</tt>
+             * @requires_gl33 Extension @extension{ARB,texture_rgb10_a2ui}
              */
             RGB10Alpha2Unsigned = GL_RGB10_A2UI,
 
@@ -290,7 +290,7 @@ class MAGNUM_EXPORT AbstractTexture {
              * Three-component RGB, float, red and green 11bit, blue 10bit,
              * 32bit total.
              *
-             * @requires_gl30 Extension <tt>EXT_packed_float</tt>
+             * @requires_gl30 Extension @extension{EXT,packed_float}
              */
             RG11B10Float = GL_R11F_G11F_B10F,
 
@@ -306,7 +306,7 @@ class MAGNUM_EXPORT AbstractTexture {
              * Three-component RGB, unsigned with exponent, each component
              * 9bit, exponent 5bit, 32bit total.
              *
-             * @requires_gl30 Extension <tt>EXT_texture_shared_exponent</tt>
+             * @requires_gl30 Extension @extension{EXT,texture_shared_exponent}
              */
             RGB9Exponent5 = GL_RGB9_E5,
 
@@ -325,59 +325,59 @@ class MAGNUM_EXPORT AbstractTexture {
             /**
              * RTGC compressed red channel, unsigned normalized.
              *
-             * @requires_gl30 Extension <tt>EXT_texture_compression_rgtc</tt>
+             * @requires_gl30 Extension @extension{EXT,texture_compression_rgtc}
              */
             CompressedRtgcRed = GL_COMPRESSED_RED_RGTC1,
 
             /**
              * RTGC compressed red channel, signed normalized.
              *
-             * @requires_gl30 Extension <tt>EXT_texture_compression_rgtc</tt>
+             * @requires_gl30 Extension @extension{EXT,texture_compression_rgtc}
              */
             CompressedRtgcSignedRed = GL_COMPRESSED_SIGNED_RED_RGTC1,
 
             /**
              * RTGC compressed red and green channel, unsigned normalized.
              *
-             * @requires_gl30 Extension <tt>EXT_texture_compression_rgtc</tt>
+             * @requires_gl30 Extension @extension{EXT,texture_compression_rgtc}
              */
             CompressedRtgcRedGreen = GL_COMPRESSED_RG_RGTC2,
 
             /**
              * RTGC compressed red and green channel, signed normalized.
              *
-             * @requires_gl30 Extension <tt>EXT_texture_compression_rgtc</tt>
+             * @requires_gl30 Extension @extension{EXT,texture_compression_rgtc}
              */
             CompressedRtgcSignedRedGreen = GL_COMPRESSED_SIGNED_RG_RGTC2,
 
             #if defined(GL_COMPRESSED_RGBA_BPTC_UNORM) || defined(DOXYGEN_GENERATING_OUTPUT)
             /**
-             * BTPC compressed RGBA, unsigned normalized.
+             * BPTC compressed RGBA, unsigned normalized.
              *
-             * @requires_gl42 Extension <tt>ARB_texture_compression_btpc</tt>
+             * @requires_gl42 Extension @extension{ARB,texture_compression_bptc}
              */
-            CompressedBtpcRGBA = GL_COMPRESSED_RGBA_BPTC_UNORM,
+            CompressedBptcRGBA = GL_COMPRESSED_RGBA_BPTC_UNORM,
 
             /**
-             * BTPC compressed sRGBA, unsigned normalized.
+             * BPTC compressed sRGBA, unsigned normalized.
              *
-             * @requires_gl42 Extension <tt>ARB_texture_compression_btpc</tt>
+             * @requires_gl42 Extension @extension{ARB,texture_compression_bptc}
              */
-            CompressedBtpcSRGBA = GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM,
+            CompressedBptcSRGBA = GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM,
 
             /**
-             * BTPC compressed RGB, signed float.
+             * BPTC compressed RGB, signed float.
              *
-             * @requires_gl42 Extension <tt>ARB_texture_compression_btpc</tt>
+             * @requires_gl42 Extension @extension{ARB,texture_compression_bptc}
              */
-            CompressedBtpcRGBSignedFloat = GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT,
+            CompressedBptcRGBSignedFloat = GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT,
 
             /**
-             * BTPC compressed RGB, unsigned float.
+             * BPTC compressed RGB, unsigned float.
              *
-             * @requires_gl42 Extension <tt>ARB_texture_compression_btpc</tt>
+             * @requires_gl42 Extension @extension{ARB,texture_compression_bptc}
              */
-            CompressedBtpcRGBUnsignedFloat = GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT,
+            CompressedBptcRGBUnsignedFloat = GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT,
             #endif
 
             /** Depth component. */
@@ -395,21 +395,21 @@ class MAGNUM_EXPORT AbstractTexture {
             /**
              * 32bit float depth component.
              *
-             * @requires_gl30 Extension <tt>ARB_depth_buffer_float</tt>
+             * @requires_gl30 Extension @extension{ARB,depth_buffer_float}
              */
             Depth32Float = GL_DEPTH_COMPONENT32F,
 
             /**
              * 24bit depth and 8bit stencil component.
              *
-             * @requires_gl30 Extension <tt>EXT_packed_depth_stencil</tt>
+             * @requires_gl30 Extension @extension{EXT,packed_depth_stencil}
              */
             Depth24Stencil8 = GL_DEPTH24_STENCIL8,
 
             /**
              * 32bit float depth component and 8bit stencil component.
              *
-             * @requires_gl30 Extension <tt>ARB_depth_buffer_float</tt>
+             * @requires_gl30 Extension @extension{ARB,depth_buffer_float}
              */
             Depth32FloatStencil8 = GL_DEPTH32F_STENCIL8
         };
@@ -451,7 +451,7 @@ class MAGNUM_EXPORT AbstractTexture {
          * @brief Max supported anisotropy
          *
          * @see setMaxAnisotropy()
-         * @requires_extension <tt>EXT_texture_filter_anisotropic</tt>
+         * @requires_extension @extension{EXT,texture_filter_anisotropic}
          */
         static GLfloat maxSupportedAnisotropy();
 
@@ -538,7 +538,7 @@ class MAGNUM_EXPORT AbstractTexture {
          * Default value is `1.0`, which means no anisotropy. Set to value
          * greater than `1.0` for anisotropic filtering.
          * @see maxSupportedAnisotropy()
-         * @requires_extension <tt>EXT_texture_filter_anisotropic</tt>
+         * @requires_extension @extension{EXT,texture_filter_anisotropic}
          */
         inline void setMaxAnisotropy(GLfloat anisotropy) {
             bind();
@@ -550,7 +550,7 @@ class MAGNUM_EXPORT AbstractTexture {
          *
          * Can not be used for rectangle textures.
          * @see setMinificationFilter()
-         * @requires_gl30 Extension <tt>EXT_framebuffer_object</tt>
+         * @requires_gl30 Extension @extension{EXT,framebuffer_object}
          */
         void generateMipmap();
 
diff --git a/src/Buffer.h b/src/Buffer.h
index 4acf393a4..34e5fae9e 100644
--- a/src/Buffer.h
+++ b/src/Buffer.h
@@ -43,7 +43,7 @@ class Buffer {
             /**
              * Source for copies.
              *
-             * @requires_gl31 Extension <tt>ARB_copy_buffer</tt>
+             * @requires_gl31 Extension @extension{ARB,copy_buffer}
              */
             #if defined(GL_COPY_READ_BUFFER_BINDING) || defined(DOXYGEN_GENERATING_OUTPUT)
             CopyRead = GL_COPY_READ_BUFFER_BINDING,
@@ -54,7 +54,7 @@ class Buffer {
             /**
              * Target for copies.
              *
-             * @requires_gl31 Extension <tt>ARB_copy_buffer</tt>
+             * @requires_gl31 Extension @extension{ARB,copy_buffer}
              */
             #if defined(GL_COPY_WRITE_BUFFER_BINDING) || defined(DOXYGEN_GENERATING_OUTPUT)
             CopyWrite = GL_COPY_WRITE_BUFFER_BINDING,
@@ -75,28 +75,28 @@ class Buffer {
              * Source for texel fetches.
              *
              * @see BufferedTexture
-             * @requires_gl31 Extension <tt>ARB_texture_buffer_object</tt>
+             * @requires_gl31 Extension @extension{ARB,texture_buffer_object}
              */
             Texture = GL_TEXTURE_BUFFER,
 
             /**
              * Target for transform feedback.
              *
-             * @requires_gl30 Extension <tt>EXT_transform_feedback</tt>
+             * @requires_gl30 Extension @extension{EXT,transform_feedback}
              */
             TransformFeedback = GL_TRANSFORM_FEEDBACK_BUFFER,
 
             /**
              * Used for storing uniforms.
              *
-             * @requires_gl31 Extension <tt>ARB_uniform_buffer_object</tt>
+             * @requires_gl31 Extension @extension{ARB,uniform_buffer_object}
              */
             Uniform = GL_UNIFORM_BUFFER,
 
             /**
              * Used for supplying arguments for instanced drawing.
              *
-             * @requires_gl40 Extension <tt>ARB_draw_indirect</tt>
+             * @requires_gl40 Extension @extension{ARB,draw_indirect}
              */
             DrawIndirect = GL_DRAW_INDIRECT_BUFFER
         };
diff --git a/src/BufferedTexture.h b/src/BufferedTexture.h
index c29f69c99..a1ea04f3e 100644
--- a/src/BufferedTexture.h
+++ b/src/BufferedTexture.h
@@ -36,7 +36,7 @@ using data setting functions in Buffer itself.
 When using buffered texture in the shader, use `samplerBuffer` and fetch the
 data using integer coordinates in `texelFetch()`.
 
-@requires_gl31 Extension <tt>ARB_texture_buffer_object</tt>
+@requires_gl31 Extension @extension{ARB,texture_buffer_object}
 */
 class BufferedTexture {
     BufferedTexture(const BufferedTexture& other) = delete;
@@ -63,7 +63,7 @@ class BufferedTexture {
             /**
              * Three-component RGB, float, each component 32bit, 96bit total.
              *
-             * @requires_gl40 Extension <tt>ARB_texture_buffer_object_rgb32</tt>
+             * @requires_gl40 Extension @extension{ARB,texture_buffer_object_rgb32}
              */
             RGB32Float = GL_RGB32F,
 
@@ -71,7 +71,7 @@ class BufferedTexture {
              * Three-component RGB, unsigned non-normalized, each component
              * 32bit, 96bit total.
              *
-             * @requires_gl40 Extension <tt>ARB_texture_buffer_object_rgb32</tt>
+             * @requires_gl40 Extension @extension{ARB,texture_buffer_object_rgb32}
              */
             RGB32UnsignedInt = GL_RGB32UI,
 
@@ -79,7 +79,7 @@ class BufferedTexture {
              * Three-component RGB, signed non-normalized, each component
              * 32bit, 96bit total.
              *
-             * @requires_gl40 Extension <tt>ARB_texture_buffer_object_rgb32</tt>
+             * @requires_gl40 Extension @extension{ARB,texture_buffer_object_rgb32}
              */
             RGB32Int = GL_RGB32I
         };
diff --git a/src/Camera.h b/src/Camera.h
index e3ff67ff8..9718c430d 100644
--- a/src/Camera.h
+++ b/src/Camera.h
@@ -45,7 +45,7 @@ class MAGNUM_EXPORT Camera: public Object {
             /**
              * Depth clamping. If enabled, ignores near and far clipping plane.
              *
-             * @requires_gl32 Extension <tt>ARB_depth_clamp</tt>
+             * @requires_gl32 Extension @extension{ARB,depth_clamp}
              */
             DepthClamp = GL_DEPTH_CLAMP,
 
diff --git a/src/CubeMapTexture.h b/src/CubeMapTexture.h
index 05882293d..e655ae458 100644
--- a/src/CubeMapTexture.h
+++ b/src/CubeMapTexture.h
@@ -61,7 +61,7 @@ class CubeMapTexture: public AbstractTexture {
         /**
          * @brief Enable/disable seamless cube map textures
          *
-         * @requires_gl32 Extension <tt>ARB_seamless_cube_map</tt>
+         * @requires_gl32 Extension @extension{ARB,seamless_cube_map}
          */
         inline static void setSeamless(bool enabled) {
             enabled ? glEnable(GL_TEXTURE_CUBE_MAP_SEAMLESS) : glDisable(GL_TEXTURE_CUBE_MAP_SEAMLESS);
diff --git a/src/CubeMapTextureArray.h b/src/CubeMapTextureArray.h
index 129b4fb4c..4c5eaefc0 100644
--- a/src/CubeMapTextureArray.h
+++ b/src/CubeMapTextureArray.h
@@ -33,7 +33,7 @@ classic textures, coordinates for cube map textures is signed three-part
 vector from the center of the cube, which intersects one of the six sides of
 the cube map.
 
-@requires_gl40 Extension <tt>ARB_texture_cube_map_array</tt>
+@requires_gl40 Extension @extension{ARB,texture_cube_map_array}
 */
 class CubeMapTextureArray: public AbstractTexture {
     public:
@@ -50,7 +50,7 @@ class CubeMapTextureArray: public AbstractTexture {
         /**
          * @brief Enable/disable seamless cube map textures
          *
-         * @requires_gl32 Extension <tt>ARB_seamless_cube_map</tt>
+         * @requires_gl32 Extension @extension{ARB,seamless_cube_map}
          */
         inline static void setSeamless(bool enabled) {
             enabled ? glEnable(GL_TEXTURE_CUBE_MAP_SEAMLESS) : glDisable(GL_TEXTURE_CUBE_MAP_SEAMLESS);
diff --git a/src/Framebuffer.h b/src/Framebuffer.h
index 1e7ec9a97..9a564efe4 100644
--- a/src/Framebuffer.h
+++ b/src/Framebuffer.h
@@ -29,7 +29,7 @@ namespace Magnum {
 /**
 @brief %Framebuffer
 
-@requires_gl30 Extension <tt>EXT_framebuffer_object</tt>
+@requires_gl30 Extension @extension{EXT,framebuffer_object}
 */
 class MAGNUM_EXPORT Framebuffer {
     Framebuffer(const Framebuffer& other) = delete;
@@ -43,14 +43,14 @@ class MAGNUM_EXPORT Framebuffer {
             /**
              * For reading only.
              *
-             * @requires_gl30 Extension <tt>EXT_framebuffer_blit</tt>
+             * @requires_gl30 Extension @extension{EXT,framebuffer_blit}
              */
             Read = GL_READ_FRAMEBUFFER,
 
             /**
              * For drawing only.
              *
-             * @requires_gl30 Extension <tt>EXT_framebuffer_blit</tt>
+             * @requires_gl30 Extension @extension{EXT,framebuffer_blit}
              */
             Draw = GL_DRAW_FRAMEBUFFER,
             ReadDraw = GL_FRAMEBUFFER       /**< For both reading and drawing. */
@@ -160,7 +160,7 @@ class MAGNUM_EXPORT Framebuffer {
          * and drawing. If multiple attachments are specified in mapForDraw()
          * / mapDefaultForDraw(), the data are written to each of them.
          *
-         * @requires_gl30 Extension <tt>EXT_framebuffer_blit</tt>
+         * @requires_gl30 Extension @extension{EXT,framebuffer_blit}
          */
         inline static void blit(const Math::Vector2<GLint>& bottomLeft, const Math::Vector2<GLint>& topRight, const Math::Vector2<GLint>& destinationBottomLeft, const Math::Vector2<GLint>& destinationTopRight, BlitMask blitMask, AbstractTexture::Filter filter) {
             glBlitFramebuffer(bottomLeft.x(), bottomLeft.y(), topRight.x(), topRight.y(), destinationBottomLeft.x(), destinationBottomLeft.y(), destinationTopRight.x(), destinationTopRight.y(), static_cast<GLbitfield>(blitMask), static_cast<GLenum>(filter));
@@ -180,7 +180,7 @@ class MAGNUM_EXPORT Framebuffer {
          * AbstractTexture::Filter::NearestNeighbor filtering is used by
          * default.
          *
-         * @requires_gl30 Extension <tt>EXT_framebuffer_blit</tt>
+         * @requires_gl30 Extension @extension{EXT,framebuffer_blit}
          */
         inline static void blit(const Math::Vector2<GLint>& bottomLeft, const Math::Vector2<GLint>& topRight, BlitMask blitMask) {
             glBlitFramebuffer(bottomLeft.x(), bottomLeft.y(), topRight.x(), topRight.y(), bottomLeft.x(), bottomLeft.y(), topRight.x(), topRight.y(), static_cast<GLbitfield>(blitMask), static_cast<GLenum>(AbstractTexture::Filter::NearestNeighbor));
@@ -283,8 +283,6 @@ class MAGNUM_EXPORT Framebuffer {
          * @param depthStencilAttachment Depth/stencil attachment
          * @param texture           1D texture
          * @param mipLevel          Mip level
-         *
-         * @requires_gl30 Extension <tt>EXT_framebuffer_object</tt>
          */
         inline void attachTexture1D(Target target, DepthStencilAttachment depthStencilAttachment, Texture1D* texture, GLint mipLevel) {
             /** @todo Check for internal format compatibility */
@@ -299,8 +297,6 @@ class MAGNUM_EXPORT Framebuffer {
          * @param colorAttachment   Color attachment ID (number between 0 and 15)
          * @param texture           1D texture
          * @param mipLevel          Mip level
-         *
-         * @requires_gl30 Extension <tt>EXT_framebuffer_object</tt>
          */
         inline void attachTexture1D(Target target, unsigned int colorAttachment, Texture1D* texture, GLint mipLevel) {
             /** @todo Check for internal format compatibility */
@@ -318,7 +314,6 @@ class MAGNUM_EXPORT Framebuffer {
          *      should be always 0.
          *
          * @see attachCubeMapTexture()
-         * @requires_gl30 Extension <tt>EXT_framebuffer_object</tt>
          */
         inline void attachTexture2D(Target target, DepthStencilAttachment depthStencilAttachment, Texture2D* texture, GLint mipLevel) {
             /** @todo Check for internal format compatibility */
@@ -336,7 +331,6 @@ class MAGNUM_EXPORT Framebuffer {
          *      should be always 0.
          *
          * @see attachCubeMapTexture()
-         * @requires_gl30 Extension <tt>EXT_framebuffer_object</tt>
          */
         inline void attachTexture2D(Target target, unsigned int colorAttachment, Texture2D* texture, GLint mipLevel) {
             /** @todo Check for internal format compatibility */
@@ -354,7 +348,6 @@ class MAGNUM_EXPORT Framebuffer {
          * @param mipLevel          Mip level
          *
          * @see attachTexture2D()
-         * @requires_gl30 Extension <tt>EXT_framebuffer_object</tt>
          */
         inline void attachCubeMapTexture(Target target, DepthStencilAttachment depthStencilAttachment, CubeMapTexture* texture, CubeMapTexture::Coordinate coordinate, GLint mipLevel) {
             /** @todo Check for internal format compatibility */
@@ -371,7 +364,6 @@ class MAGNUM_EXPORT Framebuffer {
          * @param mipLevel          Mip level
          *
          * @see attachTexture2D()
-         * @requires_gl30 Extension <tt>EXT_framebuffer_object</tt>
          */
         inline void attachCubeMapTexture(Target target, unsigned int colorAttachment, CubeMapTexture* texture, CubeMapTexture::Coordinate coordinate, GLint mipLevel) {
             /** @todo Check for internal format compatibility */
@@ -386,8 +378,6 @@ class MAGNUM_EXPORT Framebuffer {
          * @param texture           3D texture
          * @param mipLevel          Mip level
          * @param layer             Layer of 2D image within a 3D texture
-         *
-         * @requires_gl30 Extension <tt>EXT_framebuffer_object</tt>
          */
         inline void attachTexture3D(Target target, DepthStencilAttachment depthStencilAttachment, Texture3D* texture, GLint mipLevel, GLint layer) {
             /** @todo Check for internal format compatibility */
@@ -403,8 +393,6 @@ class MAGNUM_EXPORT Framebuffer {
          * @param texture           3D texture
          * @param mipLevel          Mip level
          * @param layer             Layer of 2D image within a 3D texture.
-         *
-         * @requires_gl30 Extension <tt>EXT_framebuffer_object</tt>
          */
         inline void attachTexture3D(Target target, unsigned int colorAttachment, Texture3D* texture, GLint mipLevel, GLint layer) {
             /** @todo Check for internal format compatibility */
diff --git a/src/Mesh.h b/src/Mesh.h
index 903131c61..6054b4200 100644
--- a/src/Mesh.h
+++ b/src/Mesh.h
@@ -36,8 +36,8 @@ class Buffer;
 @todo Support for normalized values (e.g. for color as char[4] passed to
      shader as floating-point vec4)
 
-@requires_gl30 Extension <tt>APPLE_vertex_array_object</tt>
-@requires_gl30 Extension <tt>EXT_gpu_shader4</tt> (for unsigned integer attributes)
+@requires_gl30 Extension @extension{APPLE,vertex_array_object}
+@requires_gl30 Extension @extension{EXT,gpu_shader4} (for unsigned integer attributes)
 
 @todo Support for provoking vertex (OpenGL 3.2, ARB_provoking_vertex)
 @todo Support for packed unsigned integer types for attributes (OpenGL 3.3, ARB_vertex_type_2_10_10_10_rev)
diff --git a/src/Query.h b/src/Query.h
index e89fea6af..8823d712b 100644
--- a/src/Query.h
+++ b/src/Query.h
@@ -57,7 +57,7 @@ class MAGNUM_EXPORT AbstractQuery {
          * Note that this function is blocking until the result is available.
          * See resultAvailable().
          *
-         * @requires_gl33 Extension <tt>ARB_timer_query</tt> (64bit integers)
+         * @requires_gl33 Extension @extension{ARB,timer_query} (64bit integers)
          */
         template<class T> T result();
 
@@ -110,7 +110,7 @@ class MAGNUM_EXPORT Query: public AbstractQuery {
             /**
              * Elapsed time
              *
-             * @requires_gl33 Extension <tt>ARB_timer_query</tt>
+             * @requires_gl33 Extension @extension{ARB,timer_query}
              */
             TimeElapsed = GL_TIME_ELAPSED
         };
@@ -182,7 +182,7 @@ class MAGNUM_EXPORT SampleQuery: public AbstractQuery {
             /**
              * Whether any samples passed from fragment shader
              *
-             * @requires_gl33 Extension <tt>ARB_occlusion_query2</tt>
+             * @requires_gl33 Extension @extension{ARB,occlusion_query2}
              */
             AnySamplesPassed = GL_ANY_SAMPLES_PASSED
         };
@@ -269,7 +269,7 @@ GLuint timeElapsed2 = q3.result<GLuint>()-tmp;
 @endcode
 Using this query results in fewer OpenGL calls when doing more measures.
 
-@requires_gl33 Extension <tt>ARB_timer_query</tt>
+@requires_gl33 Extension @extension{ARB,timer_query}
 */
 class TimeQuery: public AbstractQuery {
     public:
diff --git a/src/Renderbuffer.h b/src/Renderbuffer.h
index 04f00f94a..3fd9864a6 100644
--- a/src/Renderbuffer.h
+++ b/src/Renderbuffer.h
@@ -28,7 +28,7 @@ namespace Magnum {
 
 Attachable to Framebuffer as render target.
 
-@requires_gl30 Extension <tt>EXT_framebuffer_object</tt>
+@requires_gl30 Extension @extension{EXT,framebuffer_object}
 */
 class Renderbuffer {
     Renderbuffer(const Renderbuffer& other) = delete;
diff --git a/src/Shader.h b/src/Shader.h
index 5b51bc520..1aa51b8ca 100644
--- a/src/Shader.h
+++ b/src/Shader.h
@@ -45,7 +45,7 @@ class MAGNUM_EXPORT Shader {
             /**
              * Geometry shader
              *
-             * @requires_gl32 Extension <tt>ARB_geometry_shader4</tt>
+             * @requires_gl32 Extension @extension{ARB,geometry_shader4}
              */
             Geometry = GL_GEOMETRY_SHADER,
 
@@ -54,14 +54,14 @@ class MAGNUM_EXPORT Shader {
             /**
              * Tesselation control shader
              *
-             * @requires_gl40 Extension <tt>ARB_tesselation_shader</tt>
+             * @requires_gl40 Extension @extension{ARB,tessellation_shader}
              */
             TesselationControl = GL_TESS_CONTROL_SHADER,
 
             /**
              * Tesselation evaluation shader
              *
-             * @requires_gl40 Extension <tt>ARB_tesselation_shader</tt>
+             * @requires_gl40 Extension @extension{ARB,tessellation_shader}
              */
             TesselationEvaluation = GL_TESS_EVALUATION_SHADER
         };
diff --git a/src/Texture.h b/src/Texture.h
index a3134b792..6bfe57989 100644
--- a/src/Texture.h
+++ b/src/Texture.h
@@ -50,7 +50,7 @@ don't support mipmapping and repeating wrapping modes, see @ref Texture::Filter
 "Filter", @ref Texture::Mipmap "Mipmap" and generateMipmap() documentation
 for more information.
 
-@requires_gl31 Extension <tt>ARB_texture_rectangle</tt> (rectangle textures)
+@requires_gl31 Extension @extension{ARB,texture_rectangle} (rectangle textures)
 
 @see CubeMapTexture, CubeMapTextureArray
  */
@@ -72,21 +72,21 @@ template<size_t textureDimensions> class Texture: public AbstractTexture {
             /**
              * One-dimensional texture array (i.e. two dimensions in total)
              *
-             * @requires_gl30 Extension <tt>EXT_texture_array</tt>
+             * @requires_gl30 Extension @extension{EXT,texture_array}
              */
             Texture1DArray = GL_TEXTURE_1D_ARRAY,
 
             /**
              * Two-dimensional texture array (i.e. three dimensions in total)
              *
-             * @requires_gl30 Extension <tt>EXT_texture_array</tt>
+             * @requires_gl30 Extension @extension{EXT,texture_array}
              */
             Texture2DArray = GL_TEXTURE_2D_ARRAY,
 
             /**
              * Rectangle texture (i.e. two dimensions)
              *
-             * @requires_gl31 Extension <tt>ARB_texture_rectangle</tt>
+             * @requires_gl31 Extension @extension{ARB,texture_rectangle}
              */
             Rectangle = GL_TEXTURE_RECTANGLE
         };