@inproceedings{Beall:202077,
  author = "Beall, James H.",
  title = "{Astrophysical Jets: an updated, historical review}",
  doi = "10.22323/1.362.0060",
  booktitle = "Proceedings of Multifrequency Behaviour of High Energy Cosmic Sources - XIII {\textemdash} PoS(MULTIF2019)",
  year = 2020,
  volume = "362",
  pages = "060"
}