@article{9233,
  author = {Mitchell Begelman and D. Cioffi},
  title = {Overpressured cocoons in extragalactic radio sources},
  year = {1989},
  journal = {The Astrophysical Journal},
  volume = {345},
  pages = {L21},
  month = {10/1989},
  issn = {0004-637X},
  url = {http://adsabs.harvard.edu/full/1989ApJ...345L..21B},
  doi = {10.1086/185542},
}