%0 Journal Article %A F. F. Ivanauskas %T Difference schemes for nonlinear Schrödinger type equations %J Doklady Akademii Nauk %D 1990 %P 55-58 %V 314 %N 1 %U http://geodesic.mathdoc.fr/item/DAN_1990_314_1_a12/ %G ru %F DAN_1990_314_1_a12