Gray RO, Corbally CJ, Garrison RF, McFadden MT, Bubar EJ, McGahee CE, et al. (July 2006). "Contributions to the Nearby Stars (NStars) Project: Spectroscopy of Stars Earlier than M0 within 40 pc-The Southern Sample". The Astronomical Journal. 132 (1): 161–170. arXiv:astro-ph/0603770. Bibcode:2006AJ....132..161G. doi:10.1086/504637. S2CID119476992.
Evans DS (June 20–24, 1966). "The Revision of the General Catalogue of Radial Velocities". In Batten AH, Heard JF (eds.). Determination of Radial Velocities and their Applications. Proceedings from IAU Symposium. Vol. 30. University of Toronto: International Astronomical Union. p. 57. Bibcode:1967IAUS...30...57E.
Pizzolato N, Maggio A, Sciortino S (September 2000). "Evolution of X-ray activity of 1-3 Msun late-type stars in early post-main-sequence phases". Astronomy and Astrophysics. 361: 614–628. Bibcode:2000A&A...361..614P.