TY - JOUR AU - B. N. Devyatov AU - N. A. Rubtsov AU - V. P. Solov'ev TI - A general method for the analytic investigation of nonlinear JO - Doklady Akademii Nauk PY - 1991 SP - 951 EP - 957 VL - 321 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1991_321_5_a16/ LA - ru ID - DAN_1991_321_5_a16 ER -