@inproceedings{Bottacini:2023/L, author = "Bottacini, Eugenio", title = "{Challenges in reconciling observations and theory of the brightest gamma-ray flare ever of 3C 279}", doi = "10.22323/1.444.0940", booktitle = "Proceedings of 38th International Cosmic Ray Conference {\textemdash} PoS(ICRC2023)", year = 2023, volume = "444", pages = "940" }