@inproceedings{yang:98a,
   author    = {Jie Yang and Rainer Stiefelhagen and Uwe Meier and Alex Waibel},
   editor    = {Clare-Marie Karat and John Karat and Ian Horrocks},
   title     = {Visual Tracking for Multimodal Human Computer Interaction},
   booktitle = {Human Factors in Computing Systems: CHI 98},
   organization = {ACM SIGCHI},
   pages     = {140-147},
   year      = {1998},
   month     = {April},
   publisher = {Addison-Wesley Pub. Co.},
   address   = {Los Angeles, CA, USA}
}