TY - JOUR AU - M. I. Gil' TI - Stability of essentially nonlinear time-dependent systems JO - Doklady Akademii Nauk PY - 1989 SP - 281 EP - 284 VL - 308 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1989_308_2_a4/ LA - ru ID - DAN_1989_308_2_a4 ER -