@misc{indiciaedfb553c311ef,
  title = {IUE observations of four BL Lacertae-type objects},
  author = {Worrall, D. M. and Bruhweiler, F. C.},
  year = {1982},
  url = {https://ntrs.nasa.gov/citations/19820023307},
  note = {Source identifier: 19820023307}
}