%0 Journal Article %A T. Sh. Kal'menov %T The semiperiodic Dirichlet problem for a class of equations of mixed type %J Differencialʹnye uravneniâ %D 1978 %P 546-547 %V 14 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1978_14_3_a19/ %G ru %F DE_1978_14_3_a19