1. Production scheduling by the transportation method of linear programming;Bowman;Ops Res.,1956
2. A linear programming approach to production and employment scheduling;Hanssmann;Management Technol.,1960
3. M. L. Fisher, Optimal solution of scheduling problems using Lagrange multipliers: part I, to appear in Ops Res.
4. James H. Greene (Ed.), Production and Inventory Control Handbook, McGraw-Hill, New York.
5. Optimal solution of scheduling problems using Lagrange multipliers;Fisher,1972