@misc{indiciae77f6d364b0d3,
  title = {Accretion disk emission from a BL Lacertae object},
  author = {Wandel, Amri and Urry, C. Megan},
  year = {1991},
  url = {https://ntrs.nasa.gov/citations/19910037135},
  note = {Source identifier: 19910037135}
}