1. “Application of the Simplex Method to a Transportation Problem,” Activity Analysis of Production and Allocation, Cowles Commission Monograph No. 13, 1951.
2. and , Routing of Empties for Fixed-Schedule Transportation, The RAND Corporation, Memorandum M-406, June 12, 1950.
3. Discrete Problems and Computers, INA-53–5, November 17, 1952, pp. 14–16.