Johnson, H. L.; Iriarte, B.; Mitchell, R. I.; Wisniewskj, W. Z. (1966), "UBVRIJKL photometry of the bright stars", Communications of the Lunar and Planetary Laboratory, 4 (99), s. 99, Bibcode:1966CoLPL...4...99J.
Evans, D. S. (June 20–24, 1966), "The Revision of the General Catalogue of Radial Velocities", Batten, Alan Henry; Heard, John Frederick (Ed.), Determination of Radial Velocities and their Applications, Proceedings from IAU Symposium no. 30, 30, University of Toronto: International Astronomical Union, s. 57, Bibcode:1967IAUS...30...57E.
Malagnini, M. L.; Morossi, C. (November 1990), "Accurate absolute luminosities, effective temperatures, radii, masses and surface gravities for a selected sample of field stars", Astronomy and Astrophysics Supplement Series, 85 (3), ss. 1015-1019, Bibcode:1990A&AS...85.1015M.