John F. Sowa. Conceptual Graph Standard and Extension. In Marie-Laure Mugnier, Michel Chein, editors, Conceptual Structures: Theory, Tools and Applications, 6th International Conference on Conceptual Structures, ICCS 98, Montpellier, France, August 10-12, 1998, Proceedings. Volume 1453 of Lecture Notes in Computer Science, pages 3-14, Springer, 1998. [doi]
Abstract is missing.