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Rucinski, Slavek M. (October 2002), "The 7.5 Magnitude Limit Sample of Bright Short-Period Binary Stars. I. How Many Contact Binaries Are There?", The Publications of the Astronomical Society of the Pacific, 114 (800): 1124–1142, arXiv:astro-ph/0207144, Bibcode:2002PASP..114.1124R, doi:10.1086/342677, S2CID119453008.
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Rucinski, Slavek M. (October 2002), "The 7.5 Magnitude Limit Sample of Bright Short-Period Binary Stars. I. How Many Contact Binaries Are There?", The Publications of the Astronomical Society of the Pacific, 114 (800): 1124–1142, arXiv:astro-ph/0207144, Bibcode:2002PASP..114.1124R, doi:10.1086/342677, S2CID119453008.
Rucinski, Slavek M. (October 2002), "The 7.5 Magnitude Limit Sample of Bright Short-Period Binary Stars. I. How Many Contact Binaries Are There?", The Publications of the Astronomical Society of the Pacific, 114 (800): 1124–1142, arXiv:astro-ph/0207144, Bibcode:2002PASP..114.1124R, doi:10.1086/342677, S2CID119453008.