@article{DE_1977_13_1_a0,
     author = {M. I. Aliev},
     title = {Solvability of the {Dirichlet} problem for quasilinear equations with a non-negative characteristic form},
     journal = {Differencialʹnye uravneni\^a},
     pages = {3--9},
     publisher = {mathdoc},
     volume = {13},
     number = {1},
     year = {1977},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1977_13_1_a0/}
}