D. Huynh, and T. Cao. Proceedings of the 18th International Conference on Conceptual Structures (ICCS 2010), volume 6208 of Lecture Notes in Computer Science, page 195-198. Springer, (2010)
T. Cao, and A. Mai. Proceedings of the 18th International Conference on Conceptual Structures (ICCS 2010), volume 6208 of Lecture Notes in Computer Science, page 70-83. Springer, (2010)
T. Cao. Proceedings of the 9th International Conference on Conceptual Structures (ICCS 2001), volume 2120 of Lecture Notes in Computer Science, page 87-100. Springer, (2001)
F. Gatzemeier, and O. Meyer. Proceedings of the 10th International Conference on Conceptual Structures (ICCS 2002), volume 2393 of Lecture Notes in Computer Science, page 107-121. Springer, (2002)