Dublin Core (DC):

ISO TC 46/SC 4: Information and documentation — The Dublin Core metadata element set. ISO 15836:2003(E) ISO TC 46/SC 4 N515 Date: 2003-02-26. International standard. [http://www.niso.org/international/SC4/n515.pdf]

Darwin Core (DwC?):

vCard:

VERSIT 1996: vCard, the Electronic Business Card. Version 2.1 A VERSIT Consortium Specification, September 18, 1996. [http://www.imc.org/pdi/vcard-21.doc]