@misc{indiciae411185a2b872,
  title = {Solar Sources of Severe Space Weather},
  author = {Gopalswamy, N. and Yashiro, S. and Shibasaki, K.},
  year = {2012},
  url = {https://ntrs.nasa.gov/citations/20120012889},
  note = {Source identifier: 20120012889}
}