Young stars in ϵ Chamaleontis and their disks: disk evolution in sparse associations M. Fang, R. van Boekel, J. Bouwman, Th. Henning, W. A. Lawson and A. Sicilia-Aguilar A&A, 549 (2013) A15 Published online: 07 December 2012 DOI: 10.1051/0004-6361/201118528