@article{DE_1984_20_2_a11,
     author = {N. V. Bagotskaya},
     title = {Nonessential sets of the {Dirichlet} problem},
     journal = {Differencialʹnye uravneni\^a},
     pages = {279--288},
     publisher = {mathdoc},
     volume = {20},
     number = {2},
     year = {1984},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1984_20_2_a11/}
}