@book{222255,
	author = {Stefano Spaccapietra, Paolo Atzeni, François Fages, Mohand-Saïd Hacid, Michael Kifer, John Mylopoulos, Barbara Pernici, Pavel Shvaiko, Juan Trujillo, Ilya Zaihrayeu},
	title = {Journal on Data Semantics IX},
	publisher = {Springer US},
	year = {2007},
	address = {New York}
}