G. Stumme. Proceedings of the 12th International Conference on Conceptual Structures (ICCS 2004), Volume 3127 von Lecture Notes in Computer Science, Seite 109-125. Springer, (2004)
G. Stumme. Conceptual Structures at Work: 12th International Conference on Conceptual Structures (ICCS 2004), Volume 3127 von LNCS, Seite 109-125. Heidelberg, Springer, (2004)