@article{9385,
  author = {David Hummer and G. Rybicki},
  title = {Non-coherent scattering - VII. Frequencydependent thermalization lengths and scattering with continuous absorption},
  year = {1970},
  journal = {Monthly Notices of the Royal Astronomical Society},
  volume = {150},
  chapter = {419},
  pages = {419-434},
  month = {00/1970},
  url = {http://adsabs.harvard.edu/full/1970MNRAS.150..419H},
  doi = {10.1093/mnras/150.4.419},
  note = {JILA Pub. 666},
}