@article{228,
  author = {M. Nowak and James Chiang},
  title = {Implications of the X-Ray Variability for the Mass of MCG -6-30-15},
  year = {2000},
  journal = {The Astrophysical Journal},
  volume = {531},
  pages = {L13 - L16},
  month = {Jan-03-2000},
  issn = {0004637X},
  url = {http://stacks.iop.org/1538-4357/531/i=1/a=L13},
  doi = {10.1086/312508},
}