@misc{indiciae1ffdd7819be7,
  title = {Solar gamma rays and neutron observations},
  author = {Chupp, E. L. and Forrest, D. J. and Suri, A. N.},
  year = {1972},
  url = {https://ntrs.nasa.gov/citations/19730014031},
  note = {Source identifier: 19730014031}
}