@article{SM_1977_33_3_a6,
     author = {T. I. Zelenyak},
     title = {On~qualitative properties of solutions of quasilinear mixed problems for equations of parabolic type},
     journal = {Sbornik. Mathematics},
     pages = {427--446},
     publisher = {mathdoc},
     volume = {33},
     number = {3},
     year = {1977},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1977_33_3_a6/}
}