@misc{indiciaefbe5ecddfacf,
  title = {Spatial four wave mixing in nonlinear periodic structures.},
  author = {Guy Bartal and Ofer Manela and Mordechai Segev},
  year = {2006},
  doi = {10.1103/physrevlett.97.073906},
  url = {https://pubmed.ncbi.nlm.nih.gov/17026232/},
  note = {Source identifier: 17026232}
}