%0 Journal Article %A B. V. Tandit %T Theorems on traces for the classes $L^{r,1}_{p\psi\varphi}$ and their application to the solution of a variational problem %J Differencialʹnye uravneniâ %D 1980 %P 1826-1834 %V 16 %N 10 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1980_16_10_a10/ %G ru %F DE_1980_16_10_a10