Christopher Menzel Reference Ontologies - Application Ontologies: Either/Or or Both/And?. [Citation Graph (0, 0)][DBLP] KI Workshop on Reference Ontologies and Application Ontologies, 2003, pp:- [Conf]
Christopher Menzel On an Unsound Proof of the Existence of Possible Worlds. [Citation Graph (0, 0)][DBLP] Notre Dame Journal of Formal Logic, 1989, v:30, n:4, pp:598-603 [Journal]