TY - JOUR AU - Ya. N. Fel'd TI - On the reduction of a certain class of integral equations of the first kind to equations of the second kind JO - Doklady Akademii Nauk PY - 1969 SP - 761 EP - 764 VL - 187 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1969_187_4_a14/ LA - ru ID - DAN_1969_187_4_a14 ER -