@conference{9135,
  author = {Isaac Shlosman and Juhan Frank and Mitchell Begelman},
  title = {Bar Instabilities and Nuclear Activity in Disk Galaxies},
  year = {1989},
  journal = {unknown},
  publisher = {Kluwer Academic Publishers, Dordrecht},
  address = {Santa Cruz, California},
  url = {http://adsabs.harvard.edu/full/1989IAUS..134..462S},
  note = {JILA Pub. 3922},
}