↑ абвWielen, R. та ін. (1999), Sixth Catalogue of Fundamental Stars (FK6). Part I. Basic fundamental stars with direct solutions, Veroeffentlichungen des Astronomischen Rechen-Instituts Heidelberg, Astronomisches Rechen-Institut Heidelberg, 35 (35): 1, Bibcode:1999VeARI..35....1W.
↑Crawford, David L. (September 1958), Two-Dimensional Spectral Classification by Narrow-Band Photometry for B Stats in Clusters and Associations, Astrophysical Journal, 128: 185, Bibcode:1958ApJ...128..185C, doi:10.1086/146536.
↑ абJohnson, H. L. та ін. (1966), UBVRIJKL photometry of the bright stars, Communications of the Lunar and Planetary Laboratory, 4 (99): 99, Bibcode:1966CoLPL...4...99J.
↑ абвKocer, D. та ін. (August 2003), Elemental abundance analyses with DAO spectrograms. XXVII. The superficially normal stars theta And (A2 IV), epsilon Del (B6 III), epsilon Aqr (A1.5 V), and iota And (B9 V), Astronomy and Astrophysics, 406 (3): 975—980, Bibcode:2003A&A...406..975K, doi:10.1051/0004-6361:20030620
↑Underhill, A. B.; Divan, L.; Prevot-Burnichon, M. -L.; Doazan, V. (November 1979), Effective temperatures, angular diameters, distances and linear radii for 160 O and B stars., Monthly Notices of the Royal Astronomical Society, 189 (3): 601—605, Bibcode:1979MNRAS.189..601U, doi:10.1093/mnras/189.3.601.