Charles H. Fine and Robert M. Freund. In Proceedings of the Second ORSA/TIMS Conference on Flexible Manufacturing Systems--Operations Research Models and Applications, edited by Kathryn Stecke and Rajan Suri. Amsterdam, Netherlands : October 1986. Working Paper.
Freund, Robert M. Mathematics of Operations Research Vol. 11, No. 1 (1986): 169-179.
Freund, Robert M., and James B. Orlin. Mathematical Programming Vol. 33, No. 2 (1985): 133-145.
Freund, Robert M., Robin Roundy, and Michael J. Todd, Working Paper. October 1985.
Freund, Robert M. In Mathematical Programming Essays in Honor of George B. Dantzig Part I, edited by Richard W. Cottle, 1-13. Amsterdam, Netherlands: North Holland Publishing Company, 1985. Working Paper.
Freund, Robert M. Mathematics of Operations Research Vol. 9, No. 4 (1984): 479-497.