%0 Journal Article %A S. B. Sorokin %T Direct method for solving the inverse coefficient problem %J Sibirskij žurnal industrialʹnoj matematiki %D 2021 %P 134-147 %V 24 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/SJIM_2021_24_2_a10/ %G ru %F SJIM_2021_24_2_a10