1. The fixed charge problem;Hirsch;Naral Res. Logistics Quart.,1958
2. An approximate solution method for the fixed charge problem;Cooper;Naval Res. Logistics Quart.,1967
3. A Heuristic Production Lot Scheduling Model;Denzler,1967
4. L. Cooper and A. M. Olson, Random Perturbations and MI-MII Heuristics for the Fixed Charge Problem. Dept. of Applied Mathematics and Computer Science. Washington University, Report No. COO-1493-7 (19).
5. The Fixed Charge Problem;Steinberg,1968