"The Colour of Stars", Australia Telescope, Outreach and Education, Commonwealth Scientific and Industrial Research Organisation, 21 Aralık 2004, 22 Şubat 2012 tarihinde kaynağından arşivlendi, erişim tarihi: 16 Ocak 2012
Keenan, Philip C.; McNeil, Raymond C. (1989). "The Perkins catalog of revised MK types for the cooler stars". Astrophysical Journal Supplement Series. Cilt 71. s. 245. Bibcode:1989ApJS...71..245K. doi:10.1086/191373.
Gray, David F.; Kaur, Taranpreet (Eylül 2019). "A Recipe for Finding Stellar Radii, Temperatures, Surface Gravities, Metallicities, and Masses Using Spectral Lines". The Astrophysical Journal. 882 (2). s. 16. Bibcode:2019ApJ...882..148G. doi:10.3847/1538-4357/ab2fce. 148.
Massarotti, Alessandro; ve diğerleri. (Ocak 2008), "Rotational and Radial Velocities for a Sample of 761 HIPPARCOS Giants and the Role of Binarity", The Astronomical Journal, 135 (1), ss. 209-231, Bibcode:2008AJ....135..209M, doi:10.1088/0004-6256/135/1/209
Keenan, Philip C.; ve diğerleri. (Temmuz 1987). "Recognition and classification of strong-CN giants". Publications of the Astronomical Society of the Pacific. Cilt 99. ss. 629-636. Bibcode:1987PASP...99..629K. doi:10.1086/132025.
Gutierrez-Moreno, Adelina; ve diğerleri. (1966), "A System of photometric standards", Publications of the Department of Astronomy University of Chile, Publicaciones Universidad de Chile, Department de Astronomy, cilt 1, ss. 1-17, Bibcode:1966PDAUC...1....1G
Keenan, Philip C.; McNeil, Raymond C. (1989). "The Perkins catalog of revised MK types for the cooler stars". Astrophysical Journal Supplement Series. Cilt 71. s. 245. Bibcode:1989ApJS...71..245K. doi:10.1086/191373.
Gray, David F.; Kaur, Taranpreet (Eylül 2019). "A Recipe for Finding Stellar Radii, Temperatures, Surface Gravities, Metallicities, and Masses Using Spectral Lines". The Astrophysical Journal. 882 (2). s. 16. Bibcode:2019ApJ...882..148G. doi:10.3847/1538-4357/ab2fce. 148.
Massarotti, Alessandro; ve diğerleri. (Ocak 2008), "Rotational and Radial Velocities for a Sample of 761 HIPPARCOS Giants and the Role of Binarity", The Astronomical Journal, 135 (1), ss. 209-231, Bibcode:2008AJ....135..209M, doi:10.1088/0004-6256/135/1/209
Keenan, Philip C.; ve diğerleri. (Temmuz 1987). "Recognition and classification of strong-CN giants". Publications of the Astronomical Society of the Pacific. Cilt 99. ss. 629-636. Bibcode:1987PASP...99..629K. doi:10.1086/132025.
"The Colour of Stars", Australia Telescope, Outreach and Education, Commonwealth Scientific and Industrial Research Organisation, 21 Aralık 2004, 22 Şubat 2012 tarihinde kaynağından arşivlendi, erişim tarihi: 16 Ocak 2012