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Neilson, Hilding R; Engle, Scott G; Guinan, Edward F; Bisol, Alexandra C; Butterworth, Neil (2016), "The Secret Lives of Cepheids: Evolution, Mass-Loss, and Ultraviolet Emission of the Long-period Classical Cepheid", The Astrophysical Journal, 824 (1): 1, arXiv:1604.03128, Bibcode:2016ApJ...824....1N, doi:10.3847/0004-637X/824/1/1, S2CID118642210.
Fouqué, P.; Arriagada, P.; Storm, J.; Barnes, T. G.; Nardetto, N.; Mérand, A.; Kervella, P.; Gieren, W.; Bersier, D.; Benedict, G. F.; McArthur, B. E. (2007). "A new calibration of Galactic Cepheid period-luminosity relations from B to K bands, and a comparison to LMC relations". Astronomy and Astrophysics. 476 (1): 73–81. arXiv:0709.3255. Bibcode:2007A&A...476...73F. doi:10.1051/0004-6361:20078187. S2CID17687829.
Luck, R. E. (September 1979), "The chemical compositions of nine southern supergiant stars", Astrophysical Journal, Part 1, 232: 797–806, Bibcode:1979ApJ...232..797L, doi:10.1086/157340.
Neilson, Hilding R; Engle, Scott G; Guinan, Edward F; Bisol, Alexandra C; Butterworth, Neil (2016), "The Secret Lives of Cepheids: Evolution, Mass-Loss, and Ultraviolet Emission of the Long-period Classical Cepheid", The Astrophysical Journal, 824 (1): 1, arXiv:1604.03128, Bibcode:2016ApJ...824....1N, doi:10.3847/0004-637X/824/1/1, S2CID118642210.
Fouqué, P.; Arriagada, P.; Storm, J.; Barnes, T. G.; Nardetto, N.; Mérand, A.; Kervella, P.; Gieren, W.; Bersier, D.; Benedict, G. F.; McArthur, B. E. (2007). "A new calibration of Galactic Cepheid period-luminosity relations from B to K bands, and a comparison to LMC relations". Astronomy and Astrophysics. 476 (1): 73–81. arXiv:0709.3255. Bibcode:2007A&A...476...73F. doi:10.1051/0004-6361:20078187. S2CID17687829.