@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{GarciaSeguraLangerRozyczkaetal.1999,
  author    = {Garcia-Segura, Guillermo and Langer, Norbert and Rozyczka, M. and Franco, J. and MacLow, Mordecai-Mark},
  title     = {Hydrodynamics of ring nebulae : magnetic vs. non-magnetic hydro-models},
  year      = {1999},
  language  = {en}
}
@article{LangerGarciaSeguraMacLow1999,
  author    = {Langer, Norbert and Garcia-Segura, Guillermo and MacLow, Mordecai-Mark},
  title     = {Giant outbursts of luminous blue variables and the formation of the homunculus nebula around eta carinae},
  year      = {1999},
  language  = {en}
}