@misc{indiciaeeed429850d52,
  title = {Statistical Study on Multispacecraft Widespread Solar Energetic Particle Events During Solar Cycle 24},
  author = {Xie, H. and St Cyr, O. C. and Makela, P. and Gopalswamy, N.},
  year = {2019},
  url = {https://ntrs.nasa.gov/citations/20190034140},
  note = {Source identifier: 20190034140}
}