@inproceedings{Fitoussi:2025G7, author = "Fitoussi, Thomas", title = "{Mass composition of ultra-high-energy cosmic rays at the Pierre Auger Observatory}", doi = "10.22323/1.484.0041", booktitle = "Proceedings of 7th International Symposium on Ultra High Energy Cosmic Rays {\textemdash} PoS(UHECR2024)", year = 2025, volume = "484", pages = "041" }