O. Corby, and C. Faron-Zucker. Proceedings of the 15th International Conference on Conceptual Structures (ICCS 2007), volume 4604 of Lecture Notes in Artificial Intelligence, page 472-475. Berlin, Heidelberg, Springer-Verlag, (July 2007)
R. Dieng-Kuntz, and O. Corby. Proceedings of the 13th International Conference on Conceptual Structures (ICCS 2005), volume 3596 of Lecture Notes in Computer Science, page 19-50. Springer, (2005)
B. Elliott, E. Cheng, C. Thomas-Ogbuji, and Z. Ozsoyoglu. Proceedings of the 2009 International Database Engineering & Applications Symposium, page 31--42. New York, NY, USA, ACM, (2009)
K. Endris, S. Faisal, F. Orlandi, S. Auer, and S. Scerri. International Semantic Web Conference (1), volume 9366 of Lecture Notes in Computer Science, page 513-529. Springer, (2015)