@article{9294,
  author = {M. O'Callaghan and John Cooper},
  title = {Theory of velocity-dependent, collision-broadened, Doppler-free line shapes},
  year = {1989},
  journal = {Physical Review A},
  volume = {39},
  pages = {6206-6223},
  month = {Jan-06-1989},
  issn = {0556-2791},
  doi = {10.1103/PhysRevA.39.6206},
}