Kang Ryoung Park Juno Chang Min Cheol Whang Joa Sang Lim Dae Woong Rhee Hung Kook Park Yongjoo Cho Practical Gaze Point Detecting System. 512-519 http://dx.doi.org/10.1007/978-3-540-28649-3_63 2004 conf/dagm/2004 DAGM-Symposium db/conf/dagm/dagm2004.html#ParkCWLRPC04