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1997ApJS..108....1I - Astrophys. J., Suppl. Ser., 108, 1-39 (1997/January-0)
The primordial helium abundance: systematic effects and a new determination.
IZOTOV Y.I., THUAN T.X. and LIPOVETSKY V.A.
Abstract (from CDS):
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Simbad objects: 29
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