@misc{indiciaedb192dd7afd5,
  title = {Understanding Space Weather: The Sun as a Variable Star},
  author = {Strong, Keith and Saba, Julia and Kucera, Therese},
  year = {2011},
  url = {https://ntrs.nasa.gov/citations/20120002541},
  note = {Source identifier: 20120002541}
}