@article{7298,
  author = {Margaret Reid and K. McNeil and D. Walls},
  title = {Unified approach to multiphoton lasers and multiphoton bistability},
  year = {1981},
  journal = {Physical Review A},
  volume = {24},
  pages = {2029-2043},
  month = {Jan-10-1981},
  issn = {0556-2791},
  url = {http://link.aps.org/doi/10.1103/PhysRevA.24.2029},
  doi = {10.1103/PhysRevA.24.2029},
}