@misc{indiciae9316feb88fb9,
  title = {A highly X-ray-variable active galactic nucleus near M101 - A microlensing candidate},
  author = {Trinchieri, G. and Fabbiano, G. and Elvis, Martin},
  year = {1990},
  url = {https://ntrs.nasa.gov/citations/19900050204},
  note = {Source identifier: 19900050204}
}