TY - JOUR AU - V. M. Evtukhov TI - On a nonlinear differential equation of second order JO - Doklady Akademii Nauk PY - 1977 SP - 531 EP - 534 VL - 233 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1977_233_4_a5/ LA - ru ID - DAN_1977_233_4_a5 ER -