RACE-OC project: rotation and variability in the open cluster M 11 (NGC 6705) S. Messina, P. Parihar, J.-R. Koo, S.-L. Kim, S.-C. Rey and C.-U. Lee A&A, 513 (2010) A29 Published online: 16 April 2010 DOI: 10.1051/0004-6361/200912373