TY - JOUR AU - G. N. Petrovskiǐ TI - Some theorems of the second method of Lyapunov for quasiflows JO - Differencialʹnye uravneniâ PY - 1985 SP - 798 EP - 801 VL - 21 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1985_21_5_a8/ LA - ru ID - DE_1985_21_5_a8 ER -