M. Northover, A. Boake, und D. Kourie. Proceedings of the 14th International Conference on Conceptual Structures (ICCS 2006), Volume 4068 von Lecture Notes in Computer Science, Seite 360-373. Springer, (2006)
J. Sowa. Proceedings of the 14th International Conference on Conceptual Structures (ICCS 2006), Volume 4068 von Lecture Notes in Computer Science, Seite 54-69. Springer, (2006)
P. Øhrstrøm, J. Andersen, und H. Schärfe. Proceedings of the 13th International Conference on Conceptual Structures (ICCS 2005), Volume 3596 von Lecture Notes in Computer Science, Seite 425-438. Springer, (2005)