@article{9640,
  author = {John Castor},
  title = {Radiative Transfer in Spherically Symmetric Flows},
  year = {1972},
  journal = {The Astrophysical Journal},
  volume = {178},
  pages = {779},
  month = {Jan-12-1972},
  issn = {0004-637X},
  url = {http://adsabs.harvard.edu/full/1972ApJ...178..779C},
  doi = {10.1086/151834},
}