@misc{indiciaef948750388bb,
  title = {Blazars with arcminute-scale radio halos},
  author = {Ulvestad, J. S. and Antonucci, R. R. J.},
  year = {1986},
  url = {https://ntrs.nasa.gov/citations/19860060839},
  note = {Source identifier: 19860060839}
}