@article{RM_1994_49_3_a11,
     author = {V. N. Samokhin},
     title = {On the equations of polytropic filtration with a~variable non-linearity},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {196--197},
     publisher = {mathdoc},
     volume = {49},
     number = {3},
     year = {1994},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1994_49_3_a11/}
}