@article{DE_1973_9_7_a16,
     author = {T. V. Lossievskaya},
     title = {The solvability of generalized boundary value problems for second order elliptic equations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1318--1325},
     publisher = {mathdoc},
     volume = {9},
     number = {7},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1973_9_7_a16/}
}