A photometric long-term study of chemically peculiar stars in open clusters E. Paunzen, H. Hensberge, H. M. Maitzen, M. Netopil, C. Trigilio, L. Fossati, U. Heiter and M. Pranka A&A, 525 (2011) A16 Published online: 26 November 2010 DOI: 10.1051/0004-6361/200913789