%0 Journal Article %A A. L. Domarkas %A F. F. Ivanauskas %T Existence of solutions of a system of nonlinear Schr\"odinger equations %J Differencialʹnye uravneniâ %D 1990 %P 1137-1147 %V 26 %N 7 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1990_26_7_a4/ %G ru %F DE_1990_26_7_a4