@INPROCEEDINGS{hermann2007,
  author = {Marc Hermann and Thorsten Mahler and Guido de Melo and Michael Weber},
  title = {The Tangible Reminder},
  booktitle = {Proceedings of the 3rd IET International Conference on Intelligent Environments},
  year = {2007},
  pages = {144--151},
  month = {September},
  publisher = {The Institution of Engineering and Technology, London},
  abstract = {Today's computer systems rely on standard input and output
   hardware which often complicates the tasks of interacting
   and mapping. The Tangible Reminder introduced in this
   paper presents an highly usable, self explanatory, real life
   interface. It's task is to keep track of appointments, giving
   an overview over their current states and reminding the user
   of upcoming events. For that purpose it integrates calm am-
   bient display technology with tangible interfaces to give a
   non interruptive overview. While it supports peripheral per-
   ception it nonetheless grasps the user's attention whenever
   necessary.},
}