TY - JOUR AU - R. I. Kachurovskii TI - The solvability of certain classes of nonlinear equations JO - Doklady Akademii Nauk PY - 1969 SP - 35 EP - 37 VL - 189 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1969_189_1_a8/ LA - ru ID - DAN_1969_189_1_a8 ER -