%0 Journal Article %A D. Y. Zaporozhets %A A. Y. Kudaev %A A. A. Lezhebokov %T Multi-level algorithms for solving problems %J News of the Kabardin-Balkar scientific center of RAS %D 2013 %P 21-28 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/IZKAB_2013_4_a2/ %G ru %F IZKAB_2013_4_a2