@inproceedings{Gréaux:2023Ok, author = "Gréaux, Lucas and Biteau, Jonathan and Nievas Rosillo, Mireia", title = "{A gamma-ray perspective on the cosmological optical controversy}", doi = "10.22323/1.444.0749", booktitle = "Proceedings of 38th International Cosmic Ray Conference {\textemdash} PoS(ICRC2023)", year = 2023, volume = "444", pages = "749" }