@article{ZNSL_1990_181_a0,
     author = {A. V. Ivanov and P. Z. Mkrtychian},
     title = {Weighted estimate of gradient for nonnegative weak solutions of quasilinear doubly degenerate parabolic equations},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {3--23},
     publisher = {mathdoc},
     volume = {181},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1990_181_a0/}
}