@inproceedings{Novichkov:202207, author = "Novichkov, Pavel and Penedo, Joao and Petcov, Serguey", title = "{Mass hierarchies from residual modular symmetries}", doi = "10.22323/1.406.0050", booktitle = "Proceedings of Corfu Summer Institute 2021 "School and Workshops on Elementary Particle Physics and Gravity" {\textemdash} PoS(CORFU2021)", year = 2022, volume = "406", pages = "050" }