1. Denton, W. (2003), FRBR and Fundamental Cataloging Rules, Miskatonic University Press, available at: www.miskatonic.org/library/frbr.html
2. DokForm‐gruppen (2002), Metadata til udveksling mellem EDH/ESDH‐systemer, IT – og Telestyrelsen, Copenhagen, available at: www.oio.dk/files/horingsex‐efter.doc
3. IEEE Learning Technology Standards Committee (LTSC) Learning Object Metadata Working Group (2002), Standard for Information Technology – Education and Training Systems – Learning Objects and Metadata, IEEE P1484.12, available at: http://ltsc.ieee.org/wg12/
4. IFLA (1994), UNIMARC Manual: Bibliographic Format 1994, available at: www.ifla.org.sg/VI/3/p1996‐1/sect.htm
5. International Organization for Standardization (ISO) (2003), ISO 15836:2003 The Dublin Core Metadata Element Set, ISO, Geneva, available at: http://dublincore.org/documents/dces/ (not ISO‐style, but DCMI‐style).