1. The regularization of a Volterra equation of the first kind;Sergeev;Dokl. Akad. Nauk SSSR,1971
2. The approximate solution of Volterra integral equations of the first kind by the method of quadrature sums;Apartsin,1972
3. Some incorrectly posed problems of mathematical physics;Lavrent'ev,1962
4. Functional analysis in normed spaces;Kantorovich,1959