%0 Journal Article %A P. I. Lizorkin %T Nonisotropic Bessel potentials. Imbedding theorems for the Sobolev space $L_p^{(r_1,\dots,r_n)}$ with fractional derivatives %J Doklady Akademii Nauk %D 1966 %P 508-511 %V 170 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1966_170_3_a4/ %G ru %F DAN_1966_170_3_a4