diff --git a/index.html b/index.html
index 0211cfe..6b1cff1 100644
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+++ b/index.html
@@ -17,7 +17,6 @@
     <a href="https://opengeospatial.github.io/ontology-crs/planet/">Planet Vocabulary</a>
     <a href="https://opengeospatial.github.io/ontology-crs/projections/">Projections Vocabulary</a>
     <a href="https://opengeospatial.github.io/ontology-crs/alignments/">Alignments</a>
-    <a href="https://opengeospatial.github.io/ogc-geosparql/relatedwork/">Related Work</a>
 </nav>
 <h3>CRS Ontology documentation</h3>
 </header>
@@ -38,6 +37,12 @@ <h3 id="geosparql10">CRS Ontology</h3>
     <li>Planet Vocabulary: Representing planets and their approximations e.g. as Ellipsoids</li>
   </ul>
 </div>
+  <h3>Related Work</h3>
+  <ul>
+    <li><a href="https://data.ign.fr/def/ignf/20190213.en.htm">IGN CRS Ontology</a></li>
+    <li><a href="https://www.iso.org/standard/74039.html">ISO 19111:2019 Spatial Referencing By Coordinates</a></li>
+    <li><a href="https://github.com/situx/proj4rdf">Proj4RDF Projekt</a></li>
+  </ul>
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