Stellar longitudinal magnetic field determination through multi-Zeeman signaturesJ. C. Ramírez Vélez, M. J. Stift, S. G. Navarro, J. P. Córdova, L. Sabin and A. Ruelas-MayorgaA&A, 596 (2016) A62DOI: https://doi.org/10.1051/0004-6361/201628476