Definition of the CIDOC CRM

• Current Official Version of the CIDOC CRM The version 4.2.1 of the reference document.
  Nick Crofts, Martin Doerr, Tony Gill, Stephen Stead, Matthew Stiff (editors), Definition of the CIDOC Conceptual Reference Model, October  2006.
  Available: doc file (1,56 Mb), pdf file (587 KB).
  
  
• The version 3.4.9 of the reference document. This version corresponds to the ISO Draft International Standard submission ISO/DIS 21127 from October 2003.
  Nick Crofts, Martin Doerr, Tony Gill, Stephen Stead, Matthew Stiff (editors), Definition of the CIDOC object-oriented Conceptual Reference Model , November 2003 (version 3.4.9). Available: doc file (1,04 Mb), pdf file (701 KB).


• The version 3.4.9 of the reference document with automatically created cross-references as html hypertext.
  Nick Crofts, Martin Doerr, Tony Gill, Stephen Stead, Matthew Stiff (editors), Definition of the CIDOC object-oriented Conceptual Reference Model and Crossreference Manual, zip files (208 kb) November 2003 (version 3.4.9).