@inproceedings{Karam:2020WX, author = "Karam, Alexandros and Antoniadis, Ignatios and Lykkas, Angelos and Pappas, Thomas and Tamvakis, Kyriakos", title = "{Single-field inflation in models with an $R^2$ term}", doi = "10.22323/1.376.0073", booktitle = "Proceedings of Corfu Summer Institute 2019 "School and Workshops on Elementary Particle Physics and Gravity" {\textemdash} PoS(CORFU2019)", year = 2020, volume = "376", pages = "073" }