@article{6027,
  author = {A. Mamaev and M. Saffman and A. Zozulya},
  title = {Vortex Evolution and Bound Pair Formation in Anisotropic Nonlinear Optical Media},
  year = {1996},
  journal = {Physical Review Letters},
  volume = {77},
  pages = {4544-4547},
  month = {Jan-11-1996},
  issn = {0031-9007},
  url = {http://link.aps.org/doi/10.1103/PhysRevLett.77.4544},
  doi = {10.1103/PhysRevLett.77.4544},
}