%0 Journal Article %A Sh. M. Nasibov %T A nonlinear equation of Schrödinger type %J Differencialʹnye uravneniâ %D 1980 %P 660-670 %V 16 %N 4 %U http://geodesic.mathdoc.fr/item/DE_1980_16_4_a7/ %G ru %F DE_1980_16_4_a7