TY - JOUR AU - A. E. Gel'man TI - Analytic solutions of essentially non-linear equations JO - Doklady Akademii Nauk PY - 1962 SP - 19 EP - 20 VL - 144 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1962_144_1_a3/ LA - ru ID - DAN_1962_144_1_a3 ER -