Stefan Brass, Udo W. Lipeck. Specifying Closed World Assumptions for Logic Databases. In János Demetrovics, Bernhard Thalheim, editors, MFDBS 89, 2nd Symposium on Mathematical Fundamentals of Database Systems, Visegrád, Hungary, June 26-30, 1989. Volume 364 of Lecture Notes in Computer Science, pages 68-84, Springer, 1989. [doi]
Abstract is missing.