===== Ordering information ===== 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]]