@inproceedings{edwards215litu,
  title = {LiTu - A Human-Computer Interface based on Frustrated Internal Reflection of Light},
  author = {Edwards, Marc R. and John, Nigel W.},
  booktitle = {International Conference on Cyberworlds},
  pages = {238--239},
  year = {2015},
  organization = {IEEE Computer Society CPS}
}