@article{10518,
  author = {Peter Conti and S. Frost},
  title = {Spectroscopic studies of O-type stars. VI - The earliest types: O3-O5.5},
  year = {1977},
  journal = {The Astrophysical Journal},
  volume = {212},
  pages = {728},
  month = {Jan-03-1977},
  issn = {0004-637X},
  url = {http://articles.adsabs.harvard.edu/full/1977ApJ...212..728C},
  doi = {10.1086/155098},
}