TY - JOUR AU - S. A. Zhevakin TI - On ``period -- luminosity relation'' in the case of cepheids JO - Doklady Akademii Nauk PY - 1958 SP - 252 EP - 255 VL - 123 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1958_123_2_a10/ LA - ru ID - DAN_1958_123_2_a10 ER -