CS 30322-023: an ultra metal-poor TP-AGB star? T. Masseron, S. Van Eck, B. Famaey, S. Goriely, B. Plez, L. Siess, T. C. Beers, F. Primas and A. Jorissen A&A, 455 3 (2006) 1059-1072 Published online: 16 August 2006 DOI: 10.1051/0004-6361:20064802