@article{Imazawa:20218l,
  author = "Imazawa, Ryo  and  Fukazawa, Yasushi  and  Takahashi, Hiromitsu  and  Sasada, Mahito",
  title = "{Fast X-ray variability of radio galaxy M87}",
  doi = "10.22323/1.395.0845",
  journal = "PoS",
  year = 2021,
  volume = "ICRC2021",
  pages = "845"
}