@article{Martayan:2796,
      author        = "Martayan, C. and  Zorec, J. and  Baade, D. and  Frémat,
                       Y. and  Ekström, S. and  Fabregat, J.",
      title         = "{Massive Be and Oe stars at low metallicity and long gamma
                       ray bursts}",
      year          = "2012",
}