%0 Journal Article %A A. I. Kozhanov %T Parabolic equation with unknown absorption coefficient %J Vestnik Chelyabinskogo Gosudarstvennogo Universiteta. Matematika, Mekhanika, Informatika %D 2011 %P 5-19 %N 13 %I mathdoc %U http://geodesic.mathdoc.fr/item/VCHGU_2011_13_a0/ %G ru %F VCHGU_2011_13_a0