%0 Journal Article %A B. N. Goshchitskii %A I. S. Izrailevich %T On the existence of a ``negative'' effect of enrichment in the thermodiffusion of gases through porous media %J Doklady Akademii Nauk %D 1962 %P 817-818 %V 147 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1962_147_4_a18/ %G ru %F DAN_1962_147_4_a18