@inbook{7190,
  author = {Peter Conti and P. Massey},
  title = {The Hydrogen/Helium Ratio on the Surface of Wolf-Rayet Stars},
  year = {1981},
  volume = {89},
  number = {Astrophysics and Space Science Library},
  pages = {311-314},
  publisher = {Springer Netherlands},
  address = {Dordrecht},
  issn = {0067-0057},
  isbn = {978-94-009-8502-5},
  doi = {10.1007/978-94-009-8500-1_46},
}