@article{6855,
  author = {B. Paul and M. Dowell and Alan Gallagher and John Cooper},
  title = {Observation of conical emission from a single self-trapped beam},
  year = {1999},
  journal = {Physical Review A},
  volume = {59},
  pages = {4784-4796},
  month = {6/1999},
  issn = {1050-2947},
  doi = {10.1103/PhysRevA.59.4784},
}