@article{9558,
  author = {E. Lewis and L. McNamara},
  title = {Broadening of the D Lines and the Relaxation of the Resonance Levels of Sodium Due to Collisions with Helium},
  year = {1972},
  journal = {Physical Review A},
  volume = {5},
  pages = {2643-2651},
  month = {Jan-06-1972},
  issn = {0556-2791},
  url = {http://link.aps.org/doi/10.1103/PhysRevA.5.2643},
  doi = {10.1103/PhysRevA.5.2643},
}