@InProceedings{boring2010touchprojector,
  author = {Sven Gehring, Sebastian Boring, Alexander Wiethoff},
  title  = "{Multi-User Painting on Media Facades through Live-Video on Mobile Devices}",
  booktitle = {Extended Abstracts of the 29th ACM International Conference on Human Factors in Computing Systems - CHI 2011, Vancouver, BC, Canada, May 2011},
  month = may,
  year =   {2011},
  organization={ACM}
  }