[1] Mass segregation in M67 with 2MASS, Ch. Bonatto and E. Bica, (2003) Astron. Astrophys. 405, 525
arxiv.org
[4] A Complete N-body Model of the Old Open Cluster M67, Jarrod R. Hurley, Onno R. Pols, Sverre J. Aarseth, Christopher A. Tout, Mon.Not.Roy.Astron.Soc. 363 (2005) 293-314
bao.ac.cn
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[2]Αρχειοθετήθηκε 2016-03-04 στο Wayback Machine. S1280 and S1284: Two Oscillating Blue Stragglers in the Open Cluster M67, Xiao-Bin Zhang, Rong-Xian Zhang and Zhi-Ping Li, Chin. J. Astron. Astrophys. Vol. 5 (2005), No. 6, 579–586.
citebase.org
[3]Αρχειοθετήθηκε 2007-10-23 στο Wayback Machine. The White Dwarf Cooling Age of M67, Harvey B. Richer, Gregory G. Fahlman, Joanne Rosvick, Rodrigo Ibata, Astrophysical Journal Letters v.504, p.L91 (1998)
[2]Αρχειοθετήθηκε 2016-03-04 στο Wayback Machine. S1280 and S1284: Two Oscillating Blue Stragglers in the Open Cluster M67, Xiao-Bin Zhang, Rong-Xian Zhang and Zhi-Ping Li, Chin. J. Astron. Astrophys. Vol. 5 (2005), No. 6, 579–586.
[3]Αρχειοθετήθηκε 2007-10-23 στο Wayback Machine. The White Dwarf Cooling Age of M67, Harvey B. Richer, Gregory G. Fahlman, Joanne Rosvick, Rodrigo Ibata, Astrophysical Journal Letters v.504, p.L91 (1998)