Batten, Alan H. (1988). “Some aspects of a century of spectroscopic-binary studies”. Publications of the Astronomical Society of the Pacific (IOP Publishing) 100: 160-170. Bibcode: 1988PASP..100..160B. doi:10.1086/132152. ISSN0004-6280.
Mason, Brian D.; Wycoff, Gary L.; Hartkopf, William I.; Douglass, Geoffrey G.; Worley, Charles E. (2001). “The 2001 US Naval Observatory Double Star CD-ROM. I. The Washington Double Star Catalog”. The Astronomical Journal (American Astronomical Society) 122 (6): 3466-3471. Bibcode: 2001AJ....122.3466M. doi:10.1086/323920. ISSN0004-6256.
Richards, Mercedes T. (1993). “Circumstellar material in Algol - A study of the Balmer line profiles”. The Astrophysical Journal Supplement Series (American Astronomical Society) 86: 255-291. Bibcode: 1993ApJS...86..255R. doi:10.1086/191778. ISSN0067-0049.
Batten, Alan H. (1988). “Some aspects of a century of spectroscopic-binary studies”. Publications of the Astronomical Society of the Pacific (IOP Publishing) 100: 160-170. Bibcode: 1988PASP..100..160B. doi:10.1086/132152. ISSN0004-6280.
Mason, Brian D.; Wycoff, Gary L.; Hartkopf, William I.; Douglass, Geoffrey G.; Worley, Charles E. (2001). “The 2001 US Naval Observatory Double Star CD-ROM. I. The Washington Double Star Catalog”. The Astronomical Journal (American Astronomical Society) 122 (6): 3466-3471. Bibcode: 2001AJ....122.3466M. doi:10.1086/323920. ISSN0004-6256.
Richards, Mercedes T. (1993). “Circumstellar material in Algol - A study of the Balmer line profiles”. The Astrophysical Journal Supplement Series (American Astronomical Society) 86: 255-291. Bibcode: 1993ApJS...86..255R. doi:10.1086/191778. ISSN0067-0049.
Batten, Alan H. (1988). “Some aspects of a century of spectroscopic-binary studies”. Publications of the Astronomical Society of the Pacific (IOP Publishing) 100: 160-170. Bibcode: 1988PASP..100..160B. doi:10.1086/132152. ISSN0004-6280.
Mason, Brian D.; Wycoff, Gary L.; Hartkopf, William I.; Douglass, Geoffrey G.; Worley, Charles E. (2001). “The 2001 US Naval Observatory Double Star CD-ROM. I. The Washington Double Star Catalog”. The Astronomical Journal (American Astronomical Society) 122 (6): 3466-3471. Bibcode: 2001AJ....122.3466M. doi:10.1086/323920. ISSN0004-6256.
Richards, Mercedes T. (1993). “Circumstellar material in Algol - A study of the Balmer line profiles”. The Astrophysical Journal Supplement Series (American Astronomical Society) 86: 255-291. Bibcode: 1993ApJS...86..255R. doi:10.1086/191778. ISSN0067-0049.