↑ Angular diameters of stars from the Mark III optical interferometer., MOZURKEWICH D.; ARMSTRONG J.T.; HINDSLEY R.B.; QUIRRENBACH A.; HUMMEL C.A.; HUTTER D.J.; JOHNSTON K.J.; HAJIAN A.R.; ELIAS II N.M.; BUSCHER D.F.; SIMON R.S., Astron. J., 126, 2502-2520 (2003)
↑ Based upon the values for temperature and radius in combination with the Stefan–Boltzmann law.
↑ Oxygen abundances in halo giants. V. Giants in the fairly metal-rich globular cluster M 71., SNEDEN C.; KRAFT R.P.; LANGER G.E.; PROSSER C.F.; SHETRONE M.D, Astron. J., 107, 1773-1785 (1994)
