C. Pradel, O. Haemmerlé, и N. Hernandez. Proceedings of the 19th International Conference on Conceptual Structures (ICCS 2011), том 6828 из Lecture Notes in Computer Science, стр. 229-242. Springer, (2011)
I. Nikolova, и G. Angelova. Proceedings of the 19th International Conference on Conceptual Structures (ICCS 2011), том 6828 из Lecture Notes in Computer Science, стр. 173-186. Springer, (2011)