%0 Journal Article %A A. B. Kazansky %T Equation of transport of a passive impurity by filtration movement %J Doklady Akademii Nauk %D 1969 %P 780-783 %V 188 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1969_188_4_a13/ %G ru %F DAN_1969_188_4_a13