@article{5990,
  author = {L. Allen and V. Lembessis and M. Babiker},
  title = {Spin-orbit coupling in free-space Laguerre-Gaussian light beams},
  year = {1996},
  journal = {Physical Review A},
  volume = {53},
  pages = {R2937 - R2939},
  month = {Jan-05-1996},
  issn = {1050-2947},
  url = {http://link.aps.org/doi/10.1103/PhysRevA.53.R2937},
  doi = {10.1103/PhysRevA.53.R2937},
}