Silvio Salza, Giovanni Barone, Tadeusz Morzy. Distributed Query Optimization in Loosly Coupled Multidatabase Systems. In Georg Gottlob, Moshe Y. Vardi, editors, Database Theory - ICDT 95, 5th International Conference, Prague, Czech Republic, January 11-13, 1995, Proceedings. Volume 893 of Lecture Notes in Computer Science, pages 40-53, Springer, 1995. [doi]