%0 Journal Article %A A. Hasanov %T Problems with nonlocal boundary conditions for a class of equations of mixed type %J Differencialʹnye uravneniâ %D 1979 %P 153-158 %V 15 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1979_15_1_a18/ %G ru %F DE_1979_15_1_a18