Hans-Werner Hilse and Jochen Kothe, Implementing Persistent Identifiers: Overview of concepts, guidelines and recommendations.
London / Amsterdam: Consortium of European Libraries and European Commission on Preservation and Access, 2006. ISBN 90-6984-508-3.

Printed copies can be ordered from the ECPA Secretariat at the address below or through the ECPA website. Price: 40 euros, exclusive of postage and handling.

European Commission on Preservation and Access (ECPA)
c/o Royal Netherlands Academy of Arts and Sciences
P.O. Box 19121|Email: ecpa@bureau.knaw.nl
NL-1000 GC Amsterdam|Tel: 00 31 20 551 08 39
The Netherlands|Fax: 00 31 20 620 49 41

The report can also be downloaded as a PDF file from the website of each of the publishers: http://www.cerl.org and http://www.knaw.nl/ecpa or directly via the following persistent identifier: http://nbn-resolving.de/urn:nbn:de:gbv:7-isbn-90-6984-508-3-8