%0 Journal Article %A M. F. Pavlova %T Investigation of the equations of nonstationary nonlinear filtration %J Differencialʹnye uravneniâ %D 1987 %P 1436-1446 %V 23 %N 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1987_23_8_a18/ %G ru %F DE_1987_23_8_a18