“The Colour of Stars”, 《Australia Telescope, Outreach and Education》 (Commonwealth Scientific and Industrial Research Organisation), December 21, 2004, 2012년 3월 10일에 원본 문서에서 보존된 문서, 2012년 1월 16일에 확인함
Massarotti, Alessandro; 외. (January 2008), “Rotational and Radial Velocities for a Sample of 761 HIPPARCOS Giants and the Role of Binarity”, 《The Astronomical Journal》 135 (1): 209–231, Bibcode:2008AJ....135..209M, doi:10.1088/0004-6256/135/1/209
Ayres, Thomas R.; Brown, Alexander; Harper, Graham M. (November 2006), “The Coronae of γ Draconis”, 《The Astrophysical Journal》 651 (2): 1126–1129, Bibcode:2006ApJ...651.1126A, doi:10.1086/507763
Oja, T. (August 1991). “UBV photometry of stars whose positions are accurately known. VI”. 《Astronomy and Astrophysics Supplement Series》 89 (2): 415–419. Bibcode:1991A&AS...89..415O.
Massarotti, Alessandro; 외. (January 2008), “Rotational and Radial Velocities for a Sample of 761 HIPPARCOS Giants and the Role of Binarity”, 《The Astronomical Journal》 135 (1): 209–231, Bibcode:2008AJ....135..209M, doi:10.1088/0004-6256/135/1/209
McWilliam, Andrew (December 1990). “High-resolution spectroscopic survey of 671 GK giants”. 《Astrophysical Journal Supplement Series》 (PDF) 74: 1075–1128. Bibcode:1990ApJS...74.1075M. doi:10.1086/191527.
Perryman, M. A. C.; Lindegren, L.; Kovalevsky, J.; 외. (July 1997), “The Hipparcos Catalogue”, 《Astronomy and Astrophysics》 323: L49–L52, Bibcode:1997A&A...323L..49P
Ayres, Thomas R.; Brown, Alexander; Harper, Graham M. (November 2006), “The Coronae of γ Draconis”, 《The Astrophysical Journal》 651 (2): 1126–1129, Bibcode:2006ApJ...651.1126A, doi:10.1086/507763
“The Colour of Stars”, 《Australia Telescope, Outreach and Education》 (Commonwealth Scientific and Industrial Research Organisation), December 21, 2004, 2012년 3월 10일에 원본 문서에서 보존된 문서, 2012년 1월 16일에 확인함