diff --git a/idsa/README.md b/idsa/README.md
index 445fd8caf..a84aac591 100644
--- a/idsa/README.md
+++ b/idsa/README.md
@@ -6,11 +6,11 @@ Homepage:
 
 Redirections:
 * https://w3id.org/idsa --> https://www.internationaldataspaces.org/ 
-* https://w3id.org/idsa/core, https://w3id.org/idsa/code --> https://International-Data-Spaces-Association.github.io/InformationModel/
+* https://w3id.org/idsa/core, https://w3id.org/idsa/code, https://w3id.org/idsa/metamodel, --> https://International-Data-Spaces-Association.github.io/InformationModel/
 * https://w3id.org/idsa/core, https://w3id.org/idsa/code with "Accept: text/turtle" --> https://International-Data-Spaces-Association.github.io/InformationModel/docs/serializations/ontology.ttl
 * https://w3id.org/idsa/core.ttl, https://w3id.org/idsa/code.ttl --> https://international-data-spaces-association.github.io/InformationModel/docs/serializations/ontology.ttl
-* https://w3id.org/idsa/core[.rdf|.xml|.json|.nt], https://w3id.org/idsa/code[.rdf|.xml|.json|.nt] --> https://international-data-spaces-association.github.io/InformationModel/docs/serializations/ontology[.rdf|.xml|.json|.nt]
-* https://w3id.org/idsa/core, https://w3id.org/idsa/code with "Accept: application/[rdf+xml|xml|json|ld+json|n-triples]" or "Accept: text/[turtle|n3]" --> https://international-data-spaces-association.github.io/InformationModel/docs/serializations/ontology[.rdf|.xml|.json|.nt]
+* https://w3id.org/idsa/core[.rdf|.xml|.json|.nt], https://w3id.org/idsa/code[.rdf|.xml|.json|.nt] --> https://international-data-spaces-association.github.io/InformationModel/docs/serializations/ontology[.rdf|.xml|.json|.jsonld|.nt]
+* https://w3id.org/idsa/core, https://w3id.org/idsa/code with "Accept: application/[rdf+xml|xml|json|ld+json|n-triples]" or "Accept: text/[turtle|n3]" --> https://international-data-spaces-association.github.io/InformationModel/docs/serializations/ontology[.rdf|.xml|.json|.jsonld|.nt]
 * https://w3id.org/idsa/contexts/context.[jsonld|json] --> https://jira.iais.fraunhofer.de/stash/projects/ICTSL/repos/ids-infomodel-commons/raw/jsonld-context/4.0.0/context.jsonld
 * https://w3id.org/idsa/contexts/[a.b.c]/context.[jsonld|json] --> https://jira.iais.fraunhofer.de/stash/projects/ICTSL/repos/ids-infomodel-commons/raw/jsonld-context/[a.b.c]/context.jsonld
 * https://w3id.org/idsa/contexts/context-dev.[jsonld|json] --> https://jira.iais.fraunhofer.de/stash/projects/ICTSL/repos/ids-infomodel-commons/raw/jsonld-context/4.0.0/context.jsonld
@@ -25,3 +25,4 @@ Support:
 Contacts: 
 * [Christoph Lange](https://github.com/clange/) <christoph.lange-bever@fit.fraunhofer.de>
 * [Sebastian Bader](https://github.com/sebbader) <sebastian.bader@iais.fraunhofer.de>
+* [Haydar Akyuerek](https://github.com/HaydarAk) <haydar.akyuerek@fit.fraunhofer.de>
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