A Frequentist analysis of three right-handed neutrinos with GAMBITMarcin Chrzaszcz, Marco Drewes, Tomás E. Gonzalo, Julia Harz, Suraj Krishnamurthy and Christoph WenigerEur. Phys. J. C, 80 6 (2020) 569DOI: https://doi.org/10.1140/epjc/s10052-020-8073-9