1. E. Balas, “An additive algorithm for solving linear programs with zero–one variables”,Operations Research 13 (1965) 517–546.
2. E. Balas, “Linear programming with zero–one variables”, in:Proceedings of the third scientific session on statistics, Bucharest, December 5–7, 1963 (in Rumanian).
3. E. Balas, “Discrete programming by the filter method”,Operations Research 15 (1967) 915–957.
4. E.M.L. Beale and R.E. Small, “Mixed integer programming by a branch-and-bound technique”, in:Proceedings of IFIP congress, Volume 2, Ed. W.A. Kalenich (Spartan Press, Washington, D.C.) pp. 450–451.
5. M. Benichou, J.M. Gauthier, P. Girodet, G. Hentges, G. Ribiere and O. Vincent, “Experiments in mixed-integer linear programming”,Mathematical Programming 1 (1971) 76–94.