GIANO-TNG spectroscopy of red supergiants in the young star cluster RSGC2 L. Origlia, E. Oliva, R. Maiolino, A. Mucciarelli, C. Baffa, V. Biliotti, P. Bruno, G. Falcini, V. Gavriousev, F. Ghinassi et al. (12 more) A&A, 560 (2013) A46 Published online: 03 December 2013 DOI: 10.1051/0004-6361/201322586