@article{6958,
  author = {Y. Maeda and K. Koyama and J. Yokogawa and S. Skinner},
  title = {X-Ray Evidence for Wind-Wind Collision in the Wolf-Rayet Binary V444 Cygni},
  year = {1999},
  journal = {The Astrophysical Journal},
  volume = {510},
  pages = {967-973},
  month = {Oct-01-1999},
  issn = {0004-637X},
  url = {http://stacks.iop.org/0004-637X/510/i=2/a=967},
  doi = {10.1086/306596},
}