@article{ZNSL_1981_110_a2,
     author = {A. V. Ivanov},
     title = {On the smoothness of weak solutions of the {Dirichlet} problem for quasilinear degenerating second order elliptic equations},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {30--52},
     publisher = {mathdoc},
     volume = {110},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1981_110_a2/}
}