%0 Journal Article %A A. S. Alekseev %A B. J. Gel'Ĩinskii %T Determination of head wave intensity by the method of rays in the theory of elasticity %J Doklady Akademii Nauk %D 1958 %P 661-664 %V 118 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1958_118_4_a9/ %G ru %F DAN_1958_118_4_a9