@misc{indiciae5e09fde16a85,
  title = {New interplanetary proton fluence model},
  author = {Feynman, Joan and Armstrong, T. P. and Dao-Gibner, L. and Silverman, S.},
  year = {1990},
  url = {https://ntrs.nasa.gov/citations/19900060054},
  note = {Source identifier: 19900060054}
}