@article{5454,
  author = {Benjamin Zwickl and M. Saffman and Dana Anderson},
  title = {Propagation of Light Beams in Photorefractive Media: Fanning, Self-Bending, and Formation of Self-Pumped Four-Wave-Mixing Phase Conjugation Geometries},
  year = {1994},
  journal = {Physical Review Letters},
  volume = {73},
  pages = {818-821},
  month = {Jan-08-1994},
  issn = {0031-9007},
  doi = {10.1103/PhysRevLett.73.818},
}