@conference{9641,
  author = {A. Omont},
  title = {The Redistribution Function of Polarized Light in the Presence of Collisions and of Small Magnetic Fields. Discussion of the Polarization of the Solar Line CA I 4227 Angstroms},
  year = {1972},
  publisher = {National Center for Atmospheric Research},
  address = {Boulder, Colorado},
  note = {JILA Pub. 820},
}