@inproceedings{Novichkov:2022fd,
  author = "Novichkov, Pavel  and  Penedo, Joao  and  Petcov, Serguey",
  title = "{Fermion mass hierarchies from residual modular symmetries}",
  doi = "10.22323/1.405.0021",
  booktitle = "Proceedings of 7th Symposium on Prospects in the Physics of Discrete Symmetries, DISCRETE 2020-2021 {\textemdash} PoS(DISCRETE2020-2021)",
  year = 2022,
  volume = "405",
  pages = "021"
}