%0 Journal Article %A È. N. Bereslavskii %T Solution of a~problem of filtration of fluids of different density by the method of conformal mapping of circular polygons %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 1984 %P 56-58 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_1984_2_a9/ %G ru %F IVM_1984_2_a9