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Bessell, Michael S. (2007). "Measuring the Balmer Jump and the Effective Gravity in FGK Stars". Publications of the Astronomical Society of the Pacific. 119 (856): 605–615. arXiv:0706.2739. Bibcode:2007PASP..119..605B. doi:10.1086/519981.
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Knigge, Christian; Long, Knox S.; Wade, Richard A.; Baptista, Raymundo; Horne, Keith; Hubeny, Ivan; Rutten, Rene G. M. (1998). "Hubble Space Telescope Eclipse Observations of the Nova‐like Cataclysmic Variable UX Ursae Majoris". The Astrophysical Journal. 499 (1): 414–428. arXiv:astro-ph/9801206. Bibcode:1998ApJ...499..414K. doi:10.1086/305617.
Scargle, J. D.; Erickson, E. F.; Witteborn, F. C.; Strecker, D. W. (1978). "Infrared excesses in early-type stars - Gamma Cassiopeiae". Astrophysical Journal. 224: 527. Bibcode:1978ApJ...224..527S. doi:10.1086/156400.
Bessell, Michael S. (2007). "Measuring the Balmer Jump and the Effective Gravity in FGK Stars". Publications of the Astronomical Society of the Pacific. 119 (856): 605–615. arXiv:0706.2739. Bibcode:2007PASP..119..605B. doi:10.1086/519981.