%0 Journal Article %A L. I. Mogilevich %A S. V. Ivanov %T The Study of Wave Propagation in a Shell with Soft Nonlinearity and with a Viscous Liquid Inside %J Russian journal of nonlinear dynamics %D 2019 %P 233-250 %V 15 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/ND_2019_15_3_a2/ %G ru %F ND_2019_15_3_a2