@article{DE_1977_13_1_a2,
     author = {A. V. Borodin},
     title = {A certain estimate for elliptic equations and its application to loaded equations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {17--22},
     publisher = {mathdoc},
     volume = {13},
     number = {1},
     year = {1977},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1977_13_1_a2/}
}