Implementing persistent identifiers : overview of concepts, guidelines and recommendations - Hilse, Hans-Werner; Kothe, Jochen; Consortium of European Research Libraries; European Commission on Preservation and Access (Consortium of European Research Libraries, European Commission on Preservation and Access, 2006)
Keywords: Computer network resources; Digital Object Identifiers; Uniform Resource Identifiers; World Wide Web; Internet; Internet-osoitteet; tietoverkot