%0 Journal Article %A V. S. Ryaben'kii %T The method of intrinsic boundary conditions in the theory of difference boundary value problems %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1971 %P 117-176 %V 26 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1971_26_3_a2/ %G en %F RM_1971_26_3_a2