On the possible presence of promethium in the spectra of HD 101065 (Przybylski's star) and HD 965C. R. Cowley, W. P. Bidelman, S. Hubrig, G. Mathys and D. J. BordA&A, 419 3 (2004) 1087-1093DOI: https://doi.org/10.1051/0004-6361:20035726
