%0 Journal Article %A M. KH. Beshtokov %T Existence and uniqueness of the solution %J News of the Kabardin-Balkar scientific center of RAS %D 2011 %P 17-21 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/IZKAB_2011_6_a1/ %G ru %F IZKAB_2011_6_a1