@inproceedings{echtler2009ledflash,
  author      = {Echtler, F. and Sielhorst, T. and Huber, M. and Klinker, G.},
  title       = {A Short Guide to Modulated Light},
  booktitle   = {TEI '09: Proceedings of the conference on tangible and embedded interaction},
  month       = feb,
  year        = 2009,
  keywords    = {multi-touch, infrared, sensing}
}