@article{TRSPY_1971_116_a9,
     author = {A. P. Oskolkov},
     title = {Certain classes on non-uniformly elliptic quasilinear {equations.~II}},
     journal = {Informatics and Automation},
     pages = {137--151},
     publisher = {mathdoc},
     volume = {116},
     year = {1971},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1971_116_a9/}
}