A. Barniske, L. M. Oskinova et W.-R. Hamann, « Two extremely luminous WN stars in the Galactic center with circumstellar emission from dust and gas », Astronomy & Astrophysics, vol. 486, no 3, , p. 971–984 (DOI10.1051/0004-6361:200809568, Bibcode2008A&A...486..971B, arXiv0807.2476)
A. Barniske, L. M. Oskinova et W.-R. Hamann, « Two extremely luminous WN stars in the Galactic center with circumstellar emission from dust and gas », Astronomy & Astrophysics, vol. 486, no 3, , p. 971–984 (DOI10.1051/0004-6361:200809568, Bibcode2008A&A...486..971B, arXiv0807.2476)
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A. Barniske, L. M. Oskinova et W.-R. Hamann, « Two extremely luminous WN stars in the Galactic center with circumstellar emission from dust and gas », Astronomy & Astrophysics, vol. 486, no 3, , p. 971–984 (DOI10.1051/0004-6361:200809568, Bibcode2008A&A...486..971B, arXiv0807.2476)