(en) J. R. Ducati, «VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system», CDS/ADC Collection of Electronic Catalogues, 2237, 0, (Bibcode2002yCat.2237....0D)
(en) J. Borgman, «Seven-Colour Photometry of O, B and A Stars», Bulletin of the Astronomical Institutes of the Netherlands, vol.15, , p.255 (Bibcode1960BAN....15..255B)
(en) D. S. Evans «The Revision of the General Catalogue of Radial Velocities» (20-24 juin 1966) (Bibcode1967IAUS...30...57E). — «(ibid.)», dans Alan Henry Batten et John Frederick Heard (éds.), Determination of Radial Velocities and their Applications, Proceedings from IAU Symposium no. 30, Université de Toronto, Union astronomique internationale, p.57–63.