@misc{indiciaecaf880161cb3,
  title = {Solar Cycle Variation and Application to the Space Radiation Environment},
  author = {Wilson, John W. and Kim, Myung-Hee Y. and Shinn, Judy L. and Tai, Hsiang and Cucinotta, Francis A. and Badhwar, Gautam D. and Badavi, Francis F. and Atwell, William},
  year = {1999},
  url = {https://ntrs.nasa.gov/citations/19990070313},
  note = {Source identifier: 19990070313}
}