%0 Journal Article %A N. E. Tovmasyan %T General boundary value problem for a system of differential equations in a half plane with violation of Ya. B. Lopatinskiǐ's condition %J Differencialʹnye uravneniâ %D 1984 %P 132-141 %V 20 %N 1 %U http://geodesic.mathdoc.fr/item/DE_1984_20_1_a16/ %G ru %F DE_1984_20_1_a16