Barry Eaglestone Siobhán North Alexandra Poulovassilis Advances in Databases, 19th British National Conference on Databases, BNCOD 19, Sheffield, UK, July 17-19, 2002, Proceedings BNCOD Lecture Notes in Computer Science 2405 Springer 2002 3-540-43905-6 db/conf/bncod/bncod2002.html