1. Facets of the knapsack polytope;Balas;Math. Programming,1975
2. Generating cuts from procedence constraints and some generalisations;Beale,1986
3. Solving large scale zero-one linear programming problems;Crowder;Oper. Res.,1983
4. The generalized assignment problem I: Valid inequalities and facets;Gottlieb,1986
5. The generalized assignment problem II: Three clases of facets;Gottlieb,1986