Authority control, digital libraries, metadata, MARC, XML, METS schema, MPEG, Moving Picture Expert Group, CIDOC, FRBR, Functional Requirements for Bibliographic Records, OAI-PMH, Dublin Core, EAC, Encoded Archiving Context, LEAF, MoReq, ONIX, TEI Controllo d'autorità, biblioteche digitali, metadati, Requisiti funzionali per record bibliografici