@misc{indiciae71a319c1c0c7,
  title = {Understanding Space Weather: The Sun as a Variable Star},
  author = {Strong, Keith and Saba, Julia and Kucera, Therese},
  year = {2012},
  url = {https://ntrs.nasa.gov/citations/20140006649},
  note = {Source identifier: 20140006649}
}