@article{6268,
  author = {B. Vaughan and M. Nowak},
  title = {X-Ray Variability Coherence: How to Compute It, What It Means, and How It Constrains Models of GX 339-4 and Cygnus X-1},
  year = {1997},
  journal = {The Astrophysical Journal},
  volume = {474},
  pages = {L43 - L46},
  month = {Jan-01-1997},
  issn = {0004637X},
  url = {http://stacks.iop.org/1538-4357/474/i=1/a=L43},
  doi = {10.1086/310430},
}