Alper Atamtürk, George L. Nemhauser, Martin W. P. Savelsbergh. Valid Inequalities for Problems with Additive Variable Upper Bounds. In Gérard Cornuéjols, Rainer E. Burkard, Gerhard J. Woeginger, editors, Integer Programming and Combinatorial Optimization, 7th International IPCO Conference, Graz, Austria, June 9-11, 1999, Proceedings. Volume 1610 of Lecture Notes in Computer Science, pages 60-72, Springer, 1999. [doi]