@misc{indiciae3f60b8f3620a,
  title = {The extreme space weather event in September 1909},
  author = {Hisashi Hayakawa and Yusuke Ebihara and Edward W. Cliver and Kentaro Hattori and Shin Toriumi and Jeffrey J. Love and Norio Umemura and Kosuke Namekata and Takahito Sakaue and Takuya Takahashi and Kazunari Shibata},
  year = {2018},
  doi = {10.1093/mnras/sty3196},
  url = {https://pubs.usgs.gov/publication/70204991},
  note = {Source identifier: 70204991}
}