S. Rudolph, und M. Schneider. Proceedings of the 19th International Conference on Conceptual Structures (ICCS 2011), Volume 6828 von Lecture Notes in Computer Science, Seite 19-34. Springer, (2011)
M. Popovici, M. Muraru, A. Agache, C. Giumale, L. Negreanu, und C. Dobre. Proceedings of the 19th International Conference on Conceptual Structures (ICCS 2011), Volume 6828 von Lecture Notes in Computer Science, Seite 215-228. Springer, (2011)