%0 Journal Article %A V. G. Danilov %A O. B. Rashkowsky %T The asymptotic solution of the equation describing the polytropic gas filtration in a nonhomogeneous porous medium. 2 %J Matematičeskoe modelirovanie %D 1991 %P 119-134 %V 3 %N 2 %U http://geodesic.mathdoc.fr/item/MM_1991_3_2_a8/ %G ru %F MM_1991_3_2_a8