%0 Journal Article %A P. V. Krauklis %T Head waves in a~medium with a~high-speed layer %J Informatics and Automation %D 1968 %P 98-105 %V 95 %I mathdoc %U http://geodesic.mathdoc.fr/item/TRSPY_1968_95_a4/ %G ru %F TRSPY_1968_95_a4