TY - JOUR AU - A. S. Alekseev AU - B. J. Gel'Ĩinskii TI - Determination of head wave intensity by the method of rays in the theory of elasticity JO - Doklady Akademii Nauk PY - 1958 SP - 661 EP - 664 VL - 118 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1958_118_4_a9/ LA - ru ID - DAN_1958_118_4_a9 ER -