A new spectroscopic calibration to determine Teff and [Fe/H] of FGK dwarfs and giants G. D. C. Teixeira, S. G. Sousa, M. Tsantaki, M. J. P. F. G. Monteiro, N. C. Santos and G. Israelian EPJ Web Conf., 160 (2017) 01013 Published online: 27 October 2017 DOI: 10.1051/epjconf/201716001013