1. Introduction to the theory of difference schemes;Godunov,1972
2. The solution of incorrectly set problems and the method of regularization;Tikhonov;Dokl. Akad. Nauk SSSR,1943
3. The solution of incorrectly set problems and the method of regularization;Tikhonov;Dokl. Akad. Nauk SSSR,1963
4. Regularization of incorrectly set problems;Tikhonov;Dokl. Akad. Nauk SSSR,1963
5. Generalization of some Bernstein inequalities;Stechlin;Dokl. Akad. Nauk SSSR,1948