This article in French explains his visit: 30 jours au Mans, entre Paris et Nantes
https://latenium.ch/30-jours-au-mans-entre-paris-et-nantes/
OpenEdition suggests that you cite this post as follows:
alexiacomte (November 30, 2023). Marc-Antoine Kaeser was visiting Le Mans for a month. SciCoMove — Scientific Collections on the Move. Retrieved April 28, 2025 from https://doi.org/10.58079/twv8