@article{HillenBarryPongs2006,
  author    = {Walter Hillen and J. C. Barry and U. M. Pongs},
  title     = {Algorithm for Purkinje Image I and IV and Limbus Centre Location. Barry, J. C.; Pongs, U. M.; Hillen, W.},
  journal   = {Computers in Biology and Medicine. 27 (1997), H. 6},
  pages     = {515 -- 531},
  year      = {2006},
}