@article{DE_1975_11_3_a8,
     author = {L. A. Bagirov and V. A. Kondrat'ev},
     title = {Elliptic equations in $R^n$},
     journal = {Differencialʹnye uravneni\^a},
     pages = {498--504},
     publisher = {mathdoc},
     volume = {11},
     number = {3},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1975_11_3_a8/}
}