TY - JOUR AU - V. E. Slyusarchuk TI - Instability of differential equations with respect to the first approximation JO - Matematičeskie zametki PY - 1985 SP - 72 EP - 77 VL - 37 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1985_37_1_a7/ LA - ru ID - MZM_1985_37_1_a7 ER -