%0 Journal Article %A P. A. Shamanaev %T On the partial instability of the zero solution of nonlinear systems to the first approximation %J Žurnal Srednevolžskogo matematičeskogo obŝestva %D 2024 %P 280-293 %V 26 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/SVMO_2024_26_3_a3/ %G ru %F SVMO_2024_26_3_a3