%0 Journal Article %A A. V. Kagal %A V. M. Filippov %T Some properties of the spaces $W^{(B_1,\dots,B_k)}(\Omega)$ with integro-differential characteristics %J Differencialʹnye uravneniâ %D 1993 %P 1078-1081 %V 29 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1993_29_6_a23/ %G ru %F DE_1993_29_6_a23