1. Existence theorems and convergence of minimizing sequences in extremum problems with restrictions;Polyak;Dokl. Akad. Nauk SSSR,1966
2. The relaxation method for linear inequalities;Agmon;Can.J.Math.,1954
3. The relaxation method for linear inequalities;Motzkin;Can. J. Math.,1954
4. Generalization of the Motskin-Agmon relaxation method;Eremin;Usp. mat. Nauk,1965
5. Finding the common point of convex sets by the method of successive projection;Bregman;Dokl. Akad. Nauk SSSR,1965