Crowther, Paul A.; Caballero-Nieves, S. M.; Bostroem, K. A.; Maíz Apellániz, J.; Schneider, F. R. N.; Walborn, N. R.; Angus, C. R.; Brott, I.; Bonanos, A.; De Koter, A.; De Mink, S. E.; Evans, C. J.; Gräfener, G.; Herrero, A.; Howarth, I. D.; Langer, N.; Lennon, D. J.; Puls, J.; Sana, H.; Vink, J. S. (2016). «The R136 star cluster dissected with Hubble Space Telescope/STIS. I. Far-ultraviolet spectroscopic census and the origin of He II λ1640 in young star clusters». Monthly Notices of the Royal Astronomical Society. 458. 624 páginas. Bibcode:2016MNRAS.458..624C. arXiv:1603.04994. doi:10.1093/mnras/stw273
Gvaramadze; Kniazev; Chene; Schnurr (2012). «Two massive stars possibly ejected from NGC 3603 via a three-body encounter». Monthly Notices of the Royal Astronomical Society: Letters. 430: L20. Bibcode:2013MNRAS.430L..20G. arXiv:1211.5926v1. doi:10.1093/mnrasl/sls041
Garmany, C. D.; Massey, P. (1981). «HD 15558 - an extremely luminous O-type binary star». Publications of the Astronomical Society of the Pacific. 93. 500 páginas. Bibcode:1981PASP...93..500G. doi:10.1086/130866
Crowther, Paul A.; Caballero-Nieves, S. M.; Bostroem, K. A.; Maíz Apellániz, J.; Schneider, F. R. N.; Walborn, N. R.; Angus, C. R.; Brott, I.; Bonanos, A.; De Koter, A.; De Mink, S. E.; Evans, C. J.; Gräfener, G.; Herrero, A.; Howarth, I. D.; Langer, N.; Lennon, D. J.; Puls, J.; Sana, H.; Vink, J. S. (2016). «The R136 star cluster dissected with Hubble Space Telescope/STIS. I. Far-ultraviolet spectroscopic census and the origin of He II λ1640 in young star clusters». Monthly Notices of the Royal Astronomical Society. 458. 624 páginas. Bibcode:2016MNRAS.458..624C. arXiv:1603.04994. doi:10.1093/mnras/stw273
Walborn, Nolan R.; Howarth, Ian D.; Lennon, Daniel J.; Massey, Philip; Oey, M. S.; Moffat, Anthony F. J.; Skalkowski, Gwen; Morrell, Nidia I.; Drissen, Laurent; Parker, Joel Wm. (2002). «A New Spectral Classification System for the Earliest O Stars: Definition of Type O2». The Astronomical Journal. 123 (5): 2754–2771. Bibcode:2002AJ....123.2754W. doi:10.1086/339831
Evans, C. J.; Walborn, N. R.; Crowther, P. A.; Hénault-Brunet, V.; Massa, D.; Taylor, W. D.; Howarth, I. D.; Sana, H.; Lennon, D. J.; Van Loon, J. T. (2010). «A Massive Runaway Star from 30 Doradus». The Astrophysical Journal. 715 (2): L74. Bibcode:2010ApJ...715L..74E. doi:10.1088/2041-8205/715/2/L74
Gvaramadze; Kniazev; Chene; Schnurr (2012). «Two massive stars possibly ejected from NGC 3603 via a three-body encounter». Monthly Notices of the Royal Astronomical Society: Letters. 430: L20. Bibcode:2013MNRAS.430L..20G. arXiv:1211.5926v1. doi:10.1093/mnrasl/sls041
Gräfener, G.; Vink, J. S.; De Koter, A.; Langer, N. (2011). «The Eddington factor as the key to understand the winds of the most massive stars». Astronomy & Astrophysics. 535: A56. Bibcode:2011A&A...535A..56G. doi:10.1051/0004-6361/201116701
Garmany, C. D.; Massey, P. (1981). «HD 15558 - an extremely luminous O-type binary star». Publications of the Astronomical Society of the Pacific. 93. 500 páginas. Bibcode:1981PASP...93..500G. doi:10.1086/130866
Crowther, Paul A.; Caballero-Nieves, S. M.; Bostroem, K. A.; Maíz Apellániz, J.; Schneider, F. R. N.; Walborn, N. R.; Angus, C. R.; Brott, I.; Bonanos, A.; De Koter, A.; De Mink, S. E.; Evans, C. J.; Gräfener, G.; Herrero, A.; Howarth, I. D.; Langer, N.; Lennon, D. J.; Puls, J.; Sana, H.; Vink, J. S. (2016). «The R136 star cluster dissected with Hubble Space Telescope/STIS. I. Far-ultraviolet spectroscopic census and the origin of He II λ1640 in young star clusters». Monthly Notices of the Royal Astronomical Society. 458. 624 páginas. Bibcode:2016MNRAS.458..624C. arXiv:1603.04994. doi:10.1093/mnras/stw273
Walborn, Nolan R.; Howarth, Ian D.; Lennon, Daniel J.; Massey, Philip; Oey, M. S.; Moffat, Anthony F. J.; Skalkowski, Gwen; Morrell, Nidia I.; Drissen, Laurent; Parker, Joel Wm. (2002). «A New Spectral Classification System for the Earliest O Stars: Definition of Type O2». The Astronomical Journal. 123 (5): 2754–2771. Bibcode:2002AJ....123.2754W. doi:10.1086/339831
Evans, C. J.; Walborn, N. R.; Crowther, P. A.; Hénault-Brunet, V.; Massa, D.; Taylor, W. D.; Howarth, I. D.; Sana, H.; Lennon, D. J.; Van Loon, J. T. (2010). «A Massive Runaway Star from 30 Doradus». The Astrophysical Journal. 715 (2): L74. Bibcode:2010ApJ...715L..74E. doi:10.1088/2041-8205/715/2/L74
Gvaramadze; Kniazev; Chene; Schnurr (2012). «Two massive stars possibly ejected from NGC 3603 via a three-body encounter». Monthly Notices of the Royal Astronomical Society: Letters. 430: L20. Bibcode:2013MNRAS.430L..20G. arXiv:1211.5926v1. doi:10.1093/mnrasl/sls041
Gräfener, G.; Vink, J. S.; De Koter, A.; Langer, N. (2011). «The Eddington factor as the key to understand the winds of the most massive stars». Astronomy & Astrophysics. 535: A56. Bibcode:2011A&A...535A..56G. doi:10.1051/0004-6361/201116701