The core-wing anomaly of cool Ap stars - Abnormal Balmer Profiles C. R. Cowley, S. Hubrig, T. A. Ryabchikova, G. Mathys, N. Piskunov and P. Mittermayer A&A, 367 3 (2001) 939-942 Published online: 15 March 2001 DOI: 10.1051/0004-6361:20000539