Based on the articles
"First detection of ozone in the mid-infrared at Mars: implications for methane detection", by K. S. Olsen et al.
Published in Astronomy & Astrophysics, 2020, 639, A141
and "First observation of the magnetic dipole CO2 absorption band at 3.3 μm in the atmosphere of Mars by the ExoMars Trace Gas Orbiter ACS instrument", by A. Trokhimovskiy et al.
Published in Astronomy & Astrophysics, 2020, 639, A142