1. “Duality and Sensitivity Analysis for Fractional Programs,”;Bitran;Operations Research,1976
2. “Linear Programming with a Fractional Objective Function,”;Bitran;Operations Research,1973
3. “Fractional Programming with Homogeneous Functions,”;Bradley;Operations Research,1974
4. “Programming with Linear Fractional Functionals,”;Charnes;Naval Research Logistics Quarterly,1962
5. “Attrition Games,”;Isbell;Naval Research Logistics Quarterly,1956