@article{OPUS4-22692,
  title     = {HE-LHC: The High-Energy Large Hadron Collider : Future Circular Collider Conceptual Design Report Volume 4},
  journal   = {European Physical Journal - Special Topics},
  volume    = {228},
  number    = {5},
  doi       = {10.1140/epjst/e2019-900088-6},
  year      = {2019},
}