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On Shepard's duality theorem
Jacobsen, S. E., (1972)
Some problems in applying mathematical programming to opportunity costing
Bernhard, Richard H., (1968)
Opportunity costing : an application of mathematical programming
Samuels, J. M., (1965)
A procedure for computing the K best solutions to discrete optimization problems and its application to the shortest path problem
Lawler, Eugene L., (1972)
The quadratic assignment problem
Lawler, Eugene L., (1963)
Recent developments in deterministic sequencing and scheduling : a survey
Lawler, Eugene L., (1981)