@inbook{9200,
  author = {Juhan Frank and Isaac Shlosman and Mitchell Begelman},
  title = {Large-Scale Accretion Flows in AGN},
  year = {1989},
  number = {NATO ASI Series, Series C: Mathematical and Physical Science},
  pages = {387-395},
  publisher = {Springer Netherlands},
  address = {Dordrecht},
  isbn = {978-94-010-6958-8},
  doi = {10.1007/978-94-009-1037-9_37},
}