1. Falke O. Rukzio E. Dietz Ul. Mobile services for near field communication. http://www.mmi.ifi.lmu.de/pubdb/publications/pub/falk e2007mobileServicesTR/falke2007mobileServicesTR.pdf Falke O. Rukzio E. Dietz Ul. Mobile services for near field communication. http://www.mmi.ifi.lmu.de/pubdb/publications/pub/falk e2007mobileServicesTR/falke2007mobileServicesTR.pdf
2. TecTile. http://en.wikipedia.org/wiki/TecTile. TecTile. http://en.wikipedia.org/wiki/TecTile.