%0 Journal Article %A V. P. Il'in %T On some properties of functions of spaces $W^l _{p,a,x}(G)$ %J Zapiski Nauchnykh Seminarov POMI %D 1971 %P 33-40 %V 23 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_1971_23_a3/ %G ru %F ZNSL_1971_23_a3