%0 Journal Article %A N. Ya. Kirpichnikova %T The propagation of surface waves that are concentrated near rays in an inhomogeneous elastic body of arbitrary form %J Informatics and Automation %D 1971 %P 114-130 %V 115 %I mathdoc %U http://geodesic.mathdoc.fr/item/TRSPY_1971_115_a9/ %G ru %F TRSPY_1971_115_a9