Semantics of a Networked World. Semantics for Grid Databases : First International IFIP Conference on Semantics of a Networked World: ICSNW 2004, Paris, France, June 17-19, 2004. Revised Selected Papers - Mokrane Bouzeghoub, Carole Goble, Vipul Kashyap, Stefano Spaccapietra ((Lecture Notes in Computer Science))