%0 Journal Article %A M. A. Rasulov %T Effective solution of a mixed problem of filtration theory %J Differencialʹnye uravneniâ %D 1979 %P 2044-2055 %V 15 %N 11 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1979_15_11_a13/ %G ru %F DE_1979_15_11_a13