oai-pmh.md

@@ -46,4 +46,15 @@ For the element langstring the attribute xml:lang is used.
 <lom:value>
   <lom:langstring xml:lang="x-none">Author</lom:langstring>
 </lom:value>
-```
+```
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+
+## Links
+https://www.openarchives.org/
+https://metacpan.org/pod/Net::OAI::Harvester
+https://validator.oaipmh.com/
+
+https://repository.tugraz.at/
+https://oer-repo.uibk.ac.at/
+
+https://www.openeducation.at/
+https://oerhub.at/
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