@article{116251,
  author = {W Hamann and G Dunnebeil and L Koesterke and W Schmutz and U Wessolowski},
  title = {Spectral analyses of Wolf-Rayet stars: hydrogen abundances in WN subtypes},
  year = {1991},
  number = {249},
  month = {1991-01-01},
  publisher = {Astronomy & Astrophysics},
  language = {en},
}