%0 Journal Article %A V. V. Kibirev %T On the oblique derivative problem with linear coefficients for harmonic functions %J Differencialʹnye uravneniâ %D 1980 %P 80-85 %V 16 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1980_16_1_a8/ %G ru %F DE_1980_16_1_a8