%0 Journal Article %A L. A. Tolokonnikov %A A. E. Belkin %T Determination of the inhomogeneity laws of a cylinder covering located in a plane waveguide for providing minimum sound reflection %J Čebyševskij sbornik %D 2020 %P 354-368 %V 21 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/CHEB_2020_21_4_a29/ %G ru %F CHEB_2020_21_4_a29