dnet:pid_types @=@ dnet:pid_types @=@ data.europa.eu @=@ EU Persistent URL
dnet:topic_types @=@ dnet:topic_types @=@ ENRICH/MISSING/SUBJECT/ACM @=@ An ACM classification term that can be associated to your publications
dnet:topic_types @=@ dnet:topic_types @=@ ENRICH/MISSING/SUBJECT/ARXIV @=@ An ARXIV classification term that can be associated to your publications
dnet:topic_types @=@ dnet:topic_types @=@ ENRICH/MISSING/SUBJECT/DDC @=@ A Dewey Decimal classification term (DDC) that can be associated to your publications