TY - JOUR AU - A. M. Fridman AU - I. G. Shuhman TI - Collective oscillations of a spherically symmetric system of rotating masses JO - Doklady Akademii Nauk PY - 1972 SP - 67 EP - 70 VL - 202 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1972_202_1_a18/ LA - ru ID - DAN_1972_202_1_a18 ER -