TRAPPIST: a robotic telescope dedicated to the study of planetary systems M. Gillon, E. Jehin, P. Magain, V. Chantry, D. Hutsemékers, J. Manfroid, D. Queloz and S. Udry EPJ Web of Conferences, 11 (2011) 06002 Published online: 16 February 2011 DOI: 10.1051/epjconf/20101106002