@article{10517,
  author = {P. Massey and Peter Conti},
  title = {Spectroscopic studies of O-type binaries. III - HDE 228766: an evolved Of system},
  year = {1977},
  journal = {The Astrophysical Journal},
  volume = {218},
  pages = {431},
  month = {Jan-12-1977},
  issn = {0004-637X},
  url = {http://articles.adsabs.harvard.edu/full/1977ApJ...218..431M},
  doi = {10.1086/155696},
}