@misc{indiciaed7ef3ae42fca,
  title = {A simple method for obtaining a three-dimensional proton distribution function from Voyager plasma data},
  author = {Olbert, S. and Jessen, J. and Belcher, J. W. and Lazarus, A.},
  year = {1978},
  url = {https://ntrs.nasa.gov/citations/19790015671},
  note = {Source identifier: 19790015671}
}