@conference {DBLP:conf/csl/GiannottiMNP98, title = {On the Effective Semantics of Nondeterministic, Nonmonotonic, Temporal Logic Databases}, booktitle = {CSL}, year = {1998}, pages = {58-72}, author = {Fosca Giannotti and Giuseppe Manco and Mirco Nanni and Dino Pedreschi} }