@article{45,
  author = {V. Damiao and E. Fotheringham and Vladimir Shkunov and L. Czaia and Dana Anderson},
  title = {Photorefractive BaTiO_3 spheres and spherical disks},
  year = {2001},
  journal = {Optics Letters},
  volume = {26},
  pages = {611},
  month = {2001-07},
  issn = {0146-9592},
  doi = {10.1364/OL.26.000611},
}