かんむり座T星
Wallerstein, George; Tanya Harrison, Ulisse Munari, and Andrew Vanture (11 May 2008). “The Metallicity and Lithium Abundances of the Recurring Novae T CrB and RS Oph”. en:Publications of the Astronomical Society of the Pacific 120 (867): 492–497. Bibcode: 2008PASP..120..492W. doi:10.1086/587965.
R and T Coronae Borealis: Two Stellar Opposites at Sky & Telescope