Dspace XMLUI extension files for URN-Management and document transfer to DNB
The package dspace-4.x works with dspace v3.x as well.
Append the following lines in dspace.cfg
###urn prefix. For example urn:nbn:de:gbv:7-
urn.prefix = <your urn subnamespace>
Register the field dc.identifier.urn in the metadata field registry