@article{ZNSL_1967_5_a2,
     author = {N. M. Ivochkina and A. P. Oskolkov},
     title = {Global estimates for the first derivatives of the solutions of {Dirichlet} problem for nonuniform quasilinear elliptic equations},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {37--109},
     year = {1967},
     volume = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1967_5_a2/}
}