%0 Journal Article %A V. A. Shargatov %A A. T. Il'ichev %T Dynamics of Perturbations under Diffusion in a Porous Medium %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 2020 %P 309-321 %V 310 %I mathdoc %U http://geodesic.mathdoc.fr/item/TM_2020_310_a20/ %G ru %F TM_2020_310_a20