%0 Journal Article %A V. N. Shchennikov %T The convergence phenomenon of a certain nonlinear system %J Differencialʹnye uravneniâ %D 1972 %P 737-739 %V 8 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1972_8_4_a22/ %G ru %F DE_1972_8_4_a22