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A comparison of two methods for quadratic programming
Panne, C. van de, (1966)
Subproblem and overall convergence for a method-of-centres algorithm
Mifflin, Robert, (1975)
Discrete resource allocation with tree constraints by an incremental method
Mjelde, K. M., (1984)
Duality in fractional programming: a unified approach
Schaible, Siegfried, (1976)
Fractional programming
Schaible, Siegfried, (1983)
Generalized concavity of a function in portfolio theory
Schaible, Siegfried, (1985)