@article{DE_1984_20_1_a16,
     author = {N. E. Tovmasyan},
     title = {General boundary value problem for a system of differential equations in a half plane with violation of {Ya.} {B.} {Lopatinski{\v\i}'s} condition},
     journal = {Differencialʹnye uravneni\^a},
     pages = {132--141},
     publisher = {mathdoc},
     volume = {20},
     number = {1},
     year = {1984},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1984_20_1_a16/}
}