%0 Journal Article %A A. N. Gaifutdinov %T Variational properties of inverse boundary value problems of filtration in earth dams %J Trudy seminara po kraevym zadačam %D 1990 %P 94-103 %V 25 %N 25 %I mathdoc %U http://geodesic.mathdoc.fr/item/KUKZ_1990_25_25_a7/ %G ru %F KUKZ_1990_25_25_a7