@article{Chen:2020Fa,
  author = "Chen, Kai-feng",
  title = "{Measurement of rare $B \to \mu\mu$ decays and search for $\tau\to 3\mu$ decays at CMS}",
  doi = "10.22323/1.377.0018",
  journal = "PoS",
  year = 2020,
  volume = "Beauty2019",
  pages = "018"
}