@misc{indiciaedf8812bc8262,
  title = {Radiative transfer in spherical dust shells using a generalized two-stream Eddington approximation},
  author = {Haisch, B. M.},
  year = {1979},
  url = {https://ntrs.nasa.gov/citations/19790040989},
  note = {Source identifier: 19790040989}
}