@article{DAN_1969_185_2_a7,
     author = {V. Ya. Rivkind and N. N. Ural'tseva},
     title = {A priori estimates for quasilinear parabolic equations with discontinuous coefficients and their application in approximation methods},
     journal = {Doklady Akademii Nauk},
     pages = {271--274},
     publisher = {mathdoc},
     volume = {185},
     number = {2},
     year = {1969},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1969_185_2_a7/}
}