TY - JOUR AU - V. Ya. Yaroslavtseva TI - A class of transformation operators and their applications to differential equations JO - Doklady Akademii Nauk PY - 1976 SP - 816 EP - 819 VL - 227 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1976_227_4_a10/ LA - ru ID - DAN_1976_227_4_a10 ER -