@article{DE_1970_6_5_a12,
     author = {A. D. Dzhabrailov},
     title = {An investigation of certain classes of second order quasilinear elliptic {equations.~II,} {III}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {889--899},
     publisher = {mathdoc},
     volume = {6},
     number = {5},
     year = {1970},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1970_6_5_a12/}
}