@article{5731,
  author = {Benjamin Zwickl and Dana Anderson},
  title = {Spatial structure of light and a nonlinear refractive index generated by fanning in photorefractive media},
  year = {1995},
  journal = {Physical Review A},
  volume = {52},
  pages = {878-881},
  month = {Jan-07-1995},
  issn = {1050-2947},
  doi = {10.1103/PhysRevA.52.878},
}