Object Management Group. Ontology definition metamodel (ODM) [online]. Version 1.0. Needham (MA, USA): Object Management Group, May 2009 [cit. 2013-07-17]. 334 s. OMG Document Number: formal/2009-05-01. Dostupné z: http://www.omg.org/spec/ODM/ nebo http://www.omg.org/spec/ODM/1.0 nebo http://www.omg.org/spec/ODM/1.0/PDF/.
Dostupné z webu společnosti: http://www.omg.org/spec/ODM/ nebo http://www.omg.org/spec/ODM/1.0 nebo http://www.omg.org/spec/ODM/1.0/PDF/.