%0 Journal Article %A V. V. Nikol'skii %T Decomposition approach to problems of the mathematical physics %J Doklady Akademii Nauk %D 1978 %P 1426-1429 %V 243 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1978_243_6_a19/ %G ru %F DAN_1978_243_6_a19