TY - JOUR AU - V. V. Tolmachev TI - Elementary excitations by temperature in a non-ideal Bose--Einstein system JO - Doklady Akademii Nauk PY - 1960 SP - 825 EP - 828 VL - 135 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1960_135_4_a16/ LA - ru ID - DAN_1960_135_4_a16 ER -