TY - JOUR AU - L. Ya. Ainola TI - Variation principle of dynamics in the linear theory of elasticity JO - Doklady Akademii Nauk PY - 1967 SP - 306 EP - 308 VL - 172 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1967_172_2_a14/ LA - ru ID - DAN_1967_172_2_a14 ER -