@article{4848,
  author = {G. Rybicki and David Hummer},
  title = {An accelerated lambda iteration method for multilevel radiative transfer. II - Overlapping transitions with full continuum},
  year = {1992},
  journal = {Astronomy and Astrophysics},
  volume = {262},
  pages = {209-215},
  month = {08/1992},
  url = {http://adsabs.harvard.edu/full/1992A\%26A...262..209R},
}