TY - JOUR AU - V. N. Samokhin TI - On the equations of polytropic filtration with a~variable non-linearity JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 1994 SP - 196 EP - 197 VL - 49 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/RM_1994_49_3_a11/ LA - en ID - RM_1994_49_3_a11 ER -