T. Raimbault, D. Genest, и S. Loiseau. Proceedings of the 17th International Conference on Conceptual Structures (ICCS 2009), том 5662 из Lecture Notes in Computer Science, стр. 270-283. Springer, (2009)
J. Baget. Proceedings of the 15th International Conference on Conceptual Structures (ICCS 2007), том 4604 из Lecture Notes in Artificial Intelligence, стр. 83-96. Berlin, Heidelberg, Springer-Verlag, (июля 2007)