%0 Journal Article %A Nguyen Dinh Huyen %T Conditions of convergence of some classes of nonlinear difference systems %J Vestnik Sankt-Peterburgskogo universiteta. Prikladnaâ matematika, informatika, processy upravleniâ %D 2011 %P 90-96 %N 2 %U http://geodesic.mathdoc.fr/item/VSPUI_2011_2_a9/ %G ru %F VSPUI_2011_2_a9