oai-pmh.md

@@ -47,8 +47,18 @@ As mentioned above, some implementaion are returning content-type as _text/xml_
 ## Custom LOM Elements
 ### centity
 _centity_ is a customized element, which is introduced by edu-sharing for vcard support (used by UIBK). _entity_ is the default one (used by TUGraz).
-For the element langstring the attribute xml:lang is used. 
+```xml
+<lom:centity>
+  <lom:vcard>
+    BEGIN:VCARD VERSION:3.0 N:Habersam;Michael;;; FN:Michael Habersam TITLE:Ao. Univ. Prof. Dr. END:VCARD
+  </lom:vcard>
+</lom:centity>
 ```
+*FN* is the common used one in oerhub. It is recommended to use the optional FN in vCard version 2.1 to show similar output for all connected repositories
+## Special Attribues
+### xml:lang
+For the element langstring the attribute xml:lang is used. 
+```xml
 <lom:title>
   <lom:langstring xml:lang="de">Wirtschaft integrativ verstehen</lom:langstring>
 </lom:title>
@@ -56,10 +66,10 @@ For the element langstring the attribute xml:lang is used.
   <lom:langstring xml:lang="de">Einführungsvortrag zum Masterstudiengang Accounting, Auditing and Taxation</lom:langstring>
 </lom:description>
 ```
-## Special Attribues
+
 ### x-none
 "x-none" is used for strings without language identification.
-```
+```xml
 <lom:value>
   <lom:langstring xml:lang="x-none">Author</lom:langstring>
 </lom:value>