Deriving metallicities from calcium triplet spectroscopy in combination with near-infrared photometryF. Mauro, C. Moni Bidin, D. Geisler, I. Saviane, G. S. Da Costa, A. C. Gormaz-Matamala, S. Vasquez, A.-N. Chené, R. Cohen and B. DiasA&A, 563 (2014) A76DOI: https://doi.org/10.1051/0004-6361/201322929