@article{2008,
  author = {B. Morsony and D. Lazzati and Mitchell Begelman},
  title = {Temporal and Angular Properties of Gamma-Ray Burst Jets Emerging from Massive Stars},
  year = {2007},
  journal = {The Astrophysical Journal},
  volume = {665},
  pages = {569-598},
  month = {08/2007},
  issn = {0004-637X},
  doi = {10.1086/519483},
}