%0 Journal Article %A È. M. Saak %T An a priori estimate in $L_p$ for a problem with oblique derivative %J Doklady Akademii Nauk %D 1974 %P 796-799 %V 215 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1974_215_4_a7/ %G ru %F DAN_1974_215_4_a7