@inbook{9074,
  author = {H. Henrichs},
  title = {Stellar Winds: Intrinsic Variability in Ultraviolet Spectra of Early-Type Stars: The Discrete Absorption Lines},
  year = {1988},
  publisher = {NASA, National Aeronautics and Space Administration, Scientific and Technical Information Branch, Washington, DC USA},
  note = {JILA Pub. 3447},
}