The IRAM M 33 CO(2–1) survey - A complete census of molecular gas out to 7 kpc C. Druard, J. Braine, K. F. Schuster, N. Schneider, P. Gratier, S. Bontemps, M. Boquien, F. Combes, E. Corbelli, C. Henkel et al. (4 more) A&A, 567 (2014) A118 Published online: 24 July 2014 DOI: 10.1051/0004-6361/201423682