%0 Journal Article %A M. I. Shvidler %T Conditional averaging of filtration fields in heterogeneous media %J Doklady Akademii Nauk %D 1986 %P 1074-1078 %V 288 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1986_288_5_a10/ %G ru %F DAN_1986_288_5_a10