TY - JOUR AU - D. G. Vasil'ev TI - On the zeros of the bending deflection function in the theory of free vibrations of shells of revolution JO - Doklady Akademii Nauk PY - 1977 SP - 764 EP - 766 VL - 237 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1977_237_4_a1/ LA - ru ID - DAN_1977_237_4_a1 ER -