P. Senkul, M. Kifer, and I. Toroslu. Proceedings of the 28th International Conference on Very Large Data Bases (VLDB 2002), page 694--705. Hong Kong, China, Springer-Verlag, Berlin, (2002)
P. Senkul, M. Kifer, and I. Toroslu. Proceedings of the 28th International Conference
on Very Large Data Bases, Hong Kong, China, 2002, page 694--705. (2002)