%0 Journal Article %A V. V. Gudkov %T A remark on a certain boundary value problem %J Differencialʹnye uravneniâ %D 1973 %P 1133-1135 %V 9 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1973_9_6_a14/ %G ru %F DE_1973_9_6_a14