F. Baader, B. Ganter, B.Sertkaya, и U. Sattler. Proceedings of the Twentieth International Joint Conference on Artificial Intelligence (IJCAI'07), стр. 230--235. (2007)
F. Baader, B. Ganter, B. Sertkaya, и U. Sattler. Proceedings of the 20th International Joint Conference on Artificial Intelligence (IJCAI 2007), стр. 230-235. Hyderabad, India, (января 2007)
F. Baader, B. Ganter, B. Sertkaya, и U. Sattler. Proceedings of the 20th international joint conference on Artifical intelligence, стр. 230--235. San Francisco, CA, USA, Morgan Kaufmann Publishers Inc., (2007)
B. Ganter, и S. Obiedkov. Conceptual Structures at Work: 12th International Conference on Conceptual Structures, том 3127 из Lecture Notes in Computer Science, стр. 186-195. Springer, (2004)