@article{7691,
  author = {Peter Conti and M. Leep and D. Perry},
  title = {The spectra of Wolf-Rayet stars. I - Optical line strengths and the hydrogen-to-helium ratios in WN type stars},
  year = {1983},
  journal = {The Astrophysical Journal},
  volume = {268},
  pages = {228},
  month = {Jan-05-1983},
  issn = {0004-637X},
  url = {http://articles.adsabs.harvard.edu/full/1983ApJ...268..228C},
  doi = {10.1086/160948},
}