@article{Cottin:2021ry,
  author = "Cottin, Giovanna",
  title = "{Searches for long-lived particles and Heavy Neutral Leptons: Theory perspective}",
  doi = "10.22323/1.397.0003",
  journal = "PoS",
  year = 2021,
  volume = "LHCP2021",
  pages = "003"
}