%0 Journal Article %A Yu. P. Krasovskii %T Nonlinear diffusion and the stratification process %J Differencialʹnye uravneniâ %D 1989 %P 989-993 %V 25 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1989_25_6_a10/ %G ru %F DE_1989_25_6_a10