Conceptual Structures: Standards and Practices: 7th International Conference on Conceptual Structures, ICCS’99 Blacksburg, VA, USA, July 12–15, 1999 Proceedings
Tepfenhart, William M ; Cyre, Walling Tepfenhart, William M. ; Cyre, Walling
Berlin, Heidelberg: Springer Berlin Heidelberg 1999