Objects and Databases International Symposium, Sophia Antipolis, France, June 13, 2000. Revised Papers - Dittrich, Klaus R.; Dittrich, Klaus R.; Guerrini, Giovanna; Guerrini, Giovanna; Merlo, Isabella; Merlo, Isabella; Oliva, Marta; Oliva, Marta; Rodriguez, M. Elena; Rodriguez, M. Elena (Springer Berlin Heidelberg : Imprint: Springer, 2001)