@article{9551,
  author = {Peter Conti and Lindsey Smith},
  title = {The Absolute Magnitudes and Spectral Types of the Stars in the Gamma Velorum System.},
  year = {1972},
  journal = {The Astrophysical Journal},
  volume = {172},
  pages = {623},
  month = {Jan-02-1972},
  issn = {0004-637X},
  url = {http://adsabs.harvard.edu/full/1972ApJ...172..623C},
  doi = {10.1086/151381},
}