%0 Journal Article %A V. V. Shumilova %T Spectrum of natural vibrations of a layered medium consisting of a Kelvin--Voigt material and a viscous incompressible fluid %J Sibirskie èlektronnye matematičeskie izvestiâ %D 2020 %P 21-31 %V 17 %I mathdoc %U http://geodesic.mathdoc.fr/item/SEMR_2020_17_a116/ %G ru %F SEMR_2020_17_a116