Persistent Uniform Resource Locator (PURL)

Knjige:

1. Živković, Daniela: Elektronička knjiga. Zagreb : Multigraf, 2001 - sign. 02 /ŽIV/ e
2. OCLC Office of Research // Encyclopedia of library and information science / edited ba Miriam A. Drake. New York ; Basel : Marcel Dekker, cop. 2003 - Vol. 3 : Lib-pub - sign. 02(03)sv3 /ENC/

EBSCO Host (pristup u GISKO ili putem CARNet Centra za online baze - Proxy):

1. Persistent identification: A key component of an E-government infrastructure. // New Review of Information Networking, May2004, Vol. 10 Issue 1, p97-106
2. Molholmn, Kurt N.: Standards and interoperability. // Information Services & Use, 2006, Vol. 26 Issue 1, p29-37

Science Direct (pristup u GISKO ili putem CARNet Centra za online baze - Proxy):

1. Karen Coyle: Identifiers: Unique, Persistent, Global // The Journal of Academic Librarianship, Volume 32, Issue 4, July 2006, Pages 428-431
2. Gerald Burke, Carol Anne Germain, Mary K. Van Ullen: URLs in the OPAC: Integrating or disintegrating research libraries' catalogs // The Journal of Academic Librarianship, Volume 29, Issue 5, September 2003, Pages 290-297

Izvori na internetu (27.01.2012.):

1. OCLC : PURLs (Persistent Uniform Resource Locators)