diff --git a/OntoDM-core-extended/README.md b/OntoDM-core-extended/README.md
new file mode 100644
index 000000000..737c31a32
--- /dev/null
+++ b/OntoDM-core-extended/README.md
@@ -0,0 +1,12 @@
+# OntoDM-core extended version
+
+The extended ontology of core data-mining enitites
+
+## Project home
+
+* http://source.ijs.si/ppanov/ontodm-core/tree/master/OntoDM-extended/ontodm-core
+
+### Contacts
+
+* Panče Panov PhD <pance.panov@ijs.si>
+* Ana Kostovska <ana.kostovska@ijs.si>