3261 20190131150046.0 10.1002/2017GL076235 DOI SCART-2017-0044 Ritter, B. Observations of the Proton Aurora on Mars with SPICAM on board Mars Express 2018 NO Gérard, J.-C. Hubert, B. Rodriguez, L. Montmessin, F. Geophysical Research Letters 45 2 612-619 luciano.rodriguez@observatoire.be published in REFERD