@article{ShpritsAllisonWangetal.2022,
  author    = {Yuri Y. Shprits and Hayley J. Allison and Dedong Wang and Alexander Drozdov and Matyas Szabo-Roberts and Irina Zhelavskaya and Ruggero Vasile},
  title     = {A new population of ultra-relativistic electrons in the outer radiation zone},
  journal   = {Journal of geophysical research : Space physics},
  volume    = {127},
  number    = {5},
  doi       = {10.1029/2021JA030214},
  year      = {2022},
}