@inproceedings{Kokorelis:2022nk, author = "Kokorelis, Christos", title = "{The neutrino problem in string models}", doi = "10.22323/1.406.0126", booktitle = "Proceedings of Corfu Summer Institute 2021 "School and Workshops on Elementary Particle Physics and Gravity" {\textemdash} PoS(CORFU2021)", year = 2022, volume = "406", pages = "126" }