@misc {IOPORT.70250576,
    author       = {Xu, Guangzhu and Zhang, Zaifeng and Ma, Yide},
    title        = {Automatic iris segmentation based on local areas},
    howpublished = {ICPR (4), 505-508 (2006).},
    year         = {2006},
    identifier   = {70250576},
}