TY - JOUR AU - V. B. Levenshtam TI - Higher approximations of the averaging method for quasilinear JO - Doklady Akademii Nauk PY - 1997 SP - 599 EP - 601 VL - 353 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1997_353_5_a5/ LA - ru ID - DAN_1997_353_5_a5 ER -