Near-infrared spectroscopy of candidate red supergiant stars in clustersMaria Messineo, Zhu Qingfeng, Valentin D. Ivanov, Donald F. Figer, Ben Davies, Karl M. Menten, Rolf P. Kudritzki and C.-H. Rosie ChenA&A, 571 (2014) A43DOI: https://doi.org/10.1051/0004-6361/201423802