@article{DBLP:journals/jiis/WangZ01, author = {Wang, Kewen and Zhou, Lizhu}, title = {An Extension to {GCWA} and Query Evaluation for Disjunctive Deductive Databases}, journal = {J. Intell. Inf. Syst.}, volume = {16}, number = {3}, pages = {229--253}, year = {2001} }