@inbook{5125,
  author = {Mitchell Begelman},
  title = {Energy Input from AGNs},
  year = {1993},
  volume = {188},
  number = {Astrophysics and Space Science Library},
  pages = {369-382},
  publisher = {Springer Netherlands},
  address = {Dordrecht},
  issn = {0067-0057},
  isbn = {978-0-7923-2541-3},
  doi = {10.1007/978-94-011-1882-8_21},
}