1125- On the Duplication System with Repair and Preventive Maintenance

953 On the Maintance of a system of machines by one repairman

405- Cumulative Marginal Productivity, Life of Plants and the Optimal Technology

1486- The Trim - Loss Reduction Problem in Industry

1493- The Optimum Production Rate in "Vehicle Fleet Scheduling" Problems

1239- Optimal and Approximate Ordering in Solving Investory Problems

401- An Extension of Black's Optimum Savings Model.

397-Iterative Price and Quality Determination for Short Run Productivity ad Foreign Trade Planning

632-Manpower Planning Model On The Computer

601-Operations Research IV Parametric Programming