@misc{indiciae06bb52451f7b,
  title = {Cosmic X-ray bremsstrahlung associated with suprathermal protons.},
  author = {Boldt, E. and Serlemitsos, P.},
  year = {1969},
  url = {https://ntrs.nasa.gov/citations/19690062654},
  note = {Source identifier: 19690062654}
}