New constraints on the planetary system around the young active star AU Mic - Two transiting warm Neptunes near mean-motion resonanceE. Martioli, G. Hébrard, A. C. M. Correia, J. Laskar and A. Lecavelier des EtangsA&A, 649 (2021) A177DOI: https://doi.org/10.1051/0004-6361/202040235