TY - JOUR AU - Yu. A. Kuznetsov AU - E. F. Sabaev TI - Estimates of the solutions of nonlinear differential equations in a phase space, and the stability of invariant sets JO - Differencialʹnye uravneniâ PY - 1978 SP - 212 EP - 222 VL - 14 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1978_14_2_a2/ LA - ru ID - DE_1978_14_2_a2 ER -