@inproceedings{stiefel:97,
   author    = {Rainer Stiefelhagen and Jie Yang},
   title     = {Gaze Tracking for Multimodal Human-Computer Interaction},
   booktitle = {Proceedings of International Conf. on Acoustics, Speech, and Signal Processing},
   year      = 1997,
   month     = {April},
   adress    = {Munich, Germany}
}