@article{Shiltsev:2020CN,
  author = "Shiltsev, Vladimir",
  title = "{Accelerators for HEP: Challenges and R\&D}",
  doi = "10.22323/1.390.0039",
  journal = "PoS",
  year = 2020,
  volume = "ICHEP2020",
  pages = "039"
}