%0 Journal Article %A G. I. Gershengorn %T On the construction of difference analogs for certain boundary value problems %J Doklady Akademii Nauk %D 1967 %P 28-30 %V 176 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1967_176_1_a5/ %G ru %F DAN_1967_176_1_a5