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Nieva, M. F.; Przybilla, N. (April 2008). "Carbon abundances of early B-type stars in the solar vicinity. Non-LTE line-formation for C II/III/IV and self-consistent atmospheric parameters". Astronomy and Astrophysics. 481 (1): 199–216. arXiv:0711.3783. Bibcode:2008A&A...481..199N. doi:10.1051/0004-6361:20078203. S2CID10281324.
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Nieva, M. F.; Przybilla, N. (April 2008). "Carbon abundances of early B-type stars in the solar vicinity. Non-LTE line-formation for C II/III/IV and self-consistent atmospheric parameters". Astronomy and Astrophysics. 481 (1): 199–216. arXiv:0711.3783. Bibcode:2008A&A...481..199N. doi:10.1051/0004-6361:20078203. S2CID10281324.
Nieva, M. F.; Przybilla, N. (April 2008). "Carbon abundances of early B-type stars in the solar vicinity. Non-LTE line-formation for C II/III/IV and self-consistent atmospheric parameters". Astronomy and Astrophysics. 481 (1): 199–216. arXiv:0711.3783. Bibcode:2008A&A...481..199N. doi:10.1051/0004-6361:20078203. S2CID10281324.