@misc{indiciae7529f4d11768,
  title = {Particles and fields in the magnetosphere.},
  author = {B J O'brien},
  year = {1967},
  doi = {10.1073/pnas.58.6.2154},
  url = {https://pubmed.ncbi.nlm.nih.gov/16591575/},
  note = {Source identifier: 16591575}
}