%0 Journal Article %A D. A. Zakora %T Spectral properties of operators in the problem on normal oscillations of~a~mixture of viscous compressible fluids %J Contemporary Mathematics. Fundamental Directions %D 2023 %P 73-97 %V 69 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMFD_2023_69_1_a5/ %G ru %F CMFD_2023_69_1_a5