1. APEX II, User Information Manual, 59158100 Rev. Control Data Corporation, Minneapolis, U.S.A.
2. E. Balas, “An additive algorithm for solving linear programs with zero–one variables”,Operations Research 13 (1965) 517–546.
3. E.M.I. Beale, “Advanced algorithmic features for general mathematical programming systems”, in: J. Abadie, ed., Integer and nonlinear programming (North Holland, Amsterdam, 1970) pp. 119–138.
4. G.B. Dantzig and R.M. VanSlyke, “Generalized upper bounded techniques for linear programming”, I, II, Operations Research Centre, University of California, Berkeley, Calif., ORC 64-17, 18.
5. Working Paper;J. Haldi,1964