TY  - BOOK
AU  - Kopylov, I. M.
ED  - International astronomical union
TI  - Hertzsprung-Russell diagrams for hot stars and O-and T-associations
T2  - ˆ[‰Papers
VL  - 8]
PY  - 1958///
CY  - M.
KW  - Москва
ER  -