%0 Journal Article %A V. F. Nikitin %A N. N. Smirnov %A V. R. Dushin %T Unstable displacement of a liquid from a porous medium with variable permeability %J Vestnik Moskovskogo universiteta. Matematika, mehanika %D 2006 %P 33-40 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/VMUMM_2006_2_a6/ %G ru %F VMUMM_2006_2_a6