%0 Journal Article %A A. M. Nakhushev %T A certain mixed problem for degenerate elliptic equations %J Differencialʹnye uravneniâ %D 1975 %P 192-195 %V 11 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1975_11_1_a24/ %G ru %F DE_1975_11_1_a24