TY - JOUR AU - B. G. Gabdulkhaev TI - Finite-dimensional approximations of singular integrals and direct methods for solving singular integral and integro-differential equations JO - Itogi nauki i tehniki. Seriâ, Matematičeskij analiz PY - 1980 SP - 251 EP - 307 VL - 18 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/INTM_1980_18_a4/ LA - ru ID - INTM_1980_18_a4 ER -