@article{9870,
  author = {David Hummer and C. Kunasz and P. Kunasz},
  title = {Numerical evaluation of the formal solution of radiative transfer problems in spherical geometries},
  year = {1973},
  journal = {Computer Physics Communications},
  volume = {6},
  pages = {38-57},
  month = {Jan-07-1973},
  issn = {00104655},
  doi = {10.1016/0010-4655(73)90021-0},
}