K. Parker. Proceedings of the 12th International Conference on Conceptual Structures (ICCS 2004), Volume 3127 von Lecture Notes in Computer Science, Seite 1-16. Springer, (2004)
M. Keeler. Proceedings of the 12th International Conference on Conceptual Structures (ICCS 2004), Volume 3127 von Lecture Notes in Computer Science, Seite 242-260. Springer, (2004)