%0 Journal Article %A N. B. Il'inskii %T An inverse mixed problem of the theory of filtration %J Trudy seminara po kraevym zadačam %D 1964 %P 19-28 %V 1 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/KUKZ_1964_1_1_a2/ %G ru %F KUKZ_1964_1_1_a2