%0 Journal Article %A M. M. Karchevskii %A A. D. Lyashko %A M. F. Pavlova %T Difference schemes for an equation of non-steady-state nonlinear filtration %J Differencialʹnye uravneniâ %D 1979 %P 1692-1706 %V 15 %N 9 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1979_15_9_a17/ %G ru %F DE_1979_15_9_a17