User:Saxum/Astronomy sandbox

References

• Drissen, Laurent; Crowther, Paul A.; Ubeda, Leonardo; Martin, Pierre (2008). "Wolf-Rayet Stars in M33 II: Optical Spectroscopy of emission-line stars in Giant Hii Regions". Monthly Notices of the Royal Astronomical Society. 389 (3): 1033–1040. arXiv:0806.2655. doi:10.1111/j.1365-2966.2008.13633.x.{{cite journal}}: CS1 maint: unflagged free DOI (link)
• Humphreys, Roberta M.; Weis, Kerstin; Davidson, Kris; Gordon, Michael S. (2016). "On the Social Traits of Luminous Blue Variables". The Astrophysical Journal. arXiv:1603.01278. doi:10.3847/0004-637X/825/1/64.{{cite journal}}: CS1 maint: unflagged free DOI (link)