%0 Journal Article %A N. K. Korenev %T The number of solutions of a certain difference scheme %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1975 %P 20-26 %V 127 %I mathdoc %U http://geodesic.mathdoc.fr/item/TM_1975_127_a2/ %G ru %F TM_1975_127_a2