Kenneth A. Ross, Divesh Srivastava, Peter J. Stuckey, S. Sudarshan. Foundations of Aggregation Constraints. In Alan Borning, editor, Principles and Practice of Constraint Programming, Second International Workshop, PPCP 94, Rosario, Orcas Island, Washington, USA, May 2-4, 1994, Proceedings. Volume 874 of Lecture Notes in Computer Science, pages 193-204, Springer, 1994.
Abstract is missing.