TY - JOUR AU - R. S. Levitin AU - T. L. Perel'man AU - I. V. Travnitskaya TI - On a limiting condition of a class of integro-differential equations with a nonintegrable kernel JO - Doklady Akademii Nauk PY - 1973 SP - 775 EP - 778 VL - 208 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1973_208_4_a4/ LA - ru ID - DAN_1973_208_4_a4 ER -