@article{Aloy:2008US,
  author = "Aloy, M.A.  and  Mimica, Petar",
  title = "{Ultrarelativistic outflows associated to progenitors of Gamma-Ray bursts}",
  doi = "10.22323/1.060.0002",
  journal = "PoS",
  year = 2008,
  volume = "SUPERNOVA",
  pages = "002"
}