%0 Journal Article %A N. V. Ardelyan %T Solvability and convergence of nonlinear difference schemes %J Doklady Akademii Nauk %D 1988 %P 1289-1292 %V 302 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1988_302_6_a0/ %G ru %F DAN_1988_302_6_a0