@article{LangerHeger1998,
  author    = {Langer, Norbert and Heger, Alexander},
  title     = {B[e] supergiants : what is their evolutionary status?},
  year      = {1998},
  language  = {en}
}
@article{LangerHegerBraun1998,
  author    = {Langer, Norbert and Heger, Alexander and Braun, H.},
  title     = {Nucleosynthesis in massive stars},
  year      = {1998},
  language  = {en}
}
@article{TakahashiFaestermannKienleetal.1998,
  author    = {Takahashi, K. and Faestermann, T. and Kienle, P. and Basch, F. and Langer, Norbert and Wagenhuber, J.},
  title     = {The 187 Re - 187Os cosmochronometry and chemical evolution in the solar neighborhood},
  year      = {1998},
  language  = {en}
}
@article{HegerLangerWoosley1998,
  author    = {Heger, Alexander and Langer, Norbert and Woosley, S. E.},
  title     = {Nucleosynthesis in rotating massive stars},
  year      = {1998},
  language  = {en}
}
@article{GarciaSeguraLangerRozyczkaetal.1998,
  author    = {Garcia-Segura, Guillermo and Langer, Norbert and Rozyczka, M. and MacLow, Mordecai-Mark},
  title     = {The effects of rotation and stellar magnetic fields on the nebular shapes : LBV nebulae and PNe},
  year      = {1998},
  language  = {en}
}
@article{FigerNajarroMorisetal.1998,
  author    = {Figer, Donald F. and Najarro, F. and Moris, Mark and Mclean, Ian S. and Geballe, T. R. and Ghez, A. M. and Langer, Norbert},
  title     = {The Pistol star},
  year      = {1998},
  language  = {en}
}
@article{LangerBraunWellstein1998,
  author    = {Langer, Norbert and Braun, H. and Wellstein, Stephan},
  title     = {Massive close binaries as source of galatic 26Al},
  year      = {1998},
  language  = {en}
}
@article{WittkowskiLangerWeigelt1998,
  author    = {Wittkowski, M. and Langer, Norbert and Weigelt, G.},
  title     = {Diffraction-limited Speckle-Masking interferometry of the red supergiant VY CMa*},
  year      = {1998},
  language  = {en}
}
@article{Langer1998,
  author    = {Langer, Norbert},
  title     = {Coupled mass and angular momentum loss of massive main sequence stars},
  year      = {1998},
  language  = {en}
}
@article{HegerLanger1998,
  author    = {Heger, Alexander and Langer, Norbert},
  title     = {The spin-up of contracting red supergiants},
  year      = {1998},
  language  = {en}
}