%0 Journal Article %A P. I. Lizorkin %T Imbedding theorems for functions of $L_p^r$ %J Doklady Akademii Nauk %D 1962 %P 1042-1045 %V 143 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1962_143_5_a9/ %G ru %F DAN_1962_143_5_a9