Mitchell, J.Wynters, E.2007-11-092007-11-091990-03896https://hdl.handle.net/1813/8779This paper published in the Proceedings of the Integer Programming and Combinatorial Optimization Conference, pp. 457-466. (Eds. Kannan, R. and W.R. Pulleyblank) University of Waterloo Press, Waterloo Ontario, Canada. To appear in the "Journal of Combinatorial Theory" (B)3542641 bytesapplication/pdfen-USOperations ResearchIndustrial Engineeringtechnical reporttechnical report