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Determination of the primordial helium abundance from radio recombination line observations: New data. The source W51
Tsivilev, A. P., Parfenov, S. Yu., Sobolev, A. M., Krasnov, V. V.Volume:
39
Language:
english
Journal:
Astronomy Letters
DOI:
10.1134/S106377371310006X
Date:
November, 2013
File:
PDF, 651 KB
english, 2013