Evolution of young brown dwarf disks in the mid-infrared M. F. Sterzik, I. Pascucci, D. Apai, N. van der Bliek and C. P. Dullemond A&A, 427 1 (2004) 245-250 Published online: 25 October 2004 DOI: 10.1051/0004-6361:20041502