@inproceedings{Nguyen:2022sD, author = "Nguyen, Kevin", title = "{Schwarzian transformations at null infinity}", doi = "10.22323/1.406.0133", booktitle = "Proceedings of Corfu Summer Institute 2021 "School and Workshops on Elementary Particle Physics and Gravity" {\textemdash} PoS(CORFU2021)", year = 2022, volume = "406", pages = "133" }