@article{DE_1969_5_12_a10,
     author = {A. D. Dzhabrailov},
     title = {An investigation of certain classes of second order quasilinear elliptic equations. {I}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {2245--2257},
     publisher = {mathdoc},
     volume = {5},
     number = {12},
     year = {1969},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1969_5_12_a10/}
}