%0 Journal Article %A V. I. Burenkov %T Certain properties of the spaces $W_p^{(r)}(\Omega)$ and $W_p^{(r,r)}(\Omega)$ for $0 %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1965 %P 72-88 %V 77 %I mathdoc %U http://geodesic.mathdoc.fr/item/TM_1965_77_a5/ %G ru %F TM_1965_77_a5