@article{DE_1971_7_7_a6,
     author = {V. S. Vinogradov},
     title = {A certain boundary value problem for an elliptic system of special form},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1226--1234},
     publisher = {mathdoc},
     volume = {7},
     number = {7},
     year = {1971},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1971_7_7_a6/}
}