%0 Journal Article %A V. M. Byrdin %T Damping of normal and surface waves and the dependence of their phase and group velocities on losses in the medium %J Doklady Akademii Nauk %D 1978 %P 552-554 %V 238 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1978_238_3_a11/ %G ru %F DAN_1978_238_3_a11