@article{article09b19476,
title   = {Pupil detection and tracking using multiple light sources},
author = {Morimoto, Carlos Hitoshi and koons, Dave and Amir, Arnon and Flickner, Myron},
year = {2000},
doi = {10.1016/S0262-8856(99)00053-0},
journal   = {Image and Vision Computing}
}