@misc{indiciaea750ed8424f5,
  title = {X-ray Variability in M87},
  author = {Harris, D. E. and Biretta, J. A. and Junor, W.},
  year = {1997},
  url = {https://ntrs.nasa.gov/citations/20000064089},
  note = {Source identifier: 20000064089}
}