Authors: AGRAWAL R DEMICHIEL LG

Citation: R. Agrawal et Lg. Demichiel, TYPE DERIVATION USING THE PROJECTION OPERATION, Information systems, 19(1), 1994, pp. 55-68

Authors: CHENG JM MATTOS NM CHAMBERLIN DD DEMICHIEL LG

Citation: Jm. Cheng et al., EXTENDING RELATIONAL DATABASE TECHNOLOGY FOR NEW APPLICATIONS, IBM systems journal, 33(2), 1994, pp. 264-279