Heimgartner11'

@inproceedings{DBLP:conf/mindtrek/Heimgartner11,
  author    = {R{\"u}diger Heimg{\"a}rtner},
  title     = {A ubiquitous device to prevent unauthorized use},
  booktitle = {MindTrek},
  year      = {2011},
  pages     = {306-308},
  ee        = {http://doi.acm.org/10.1145/2181037.2181092},
  crossref  = {DBLP:conf/mindtrek/2011},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}

@proceedings{DBLP:conf/mindtrek/2011,
  editor    = {Artur Lugmayr and
               Helj{\"a} Franssila and
               Christian Safran and
               Imed Hammouda},
  title     = {Proceedings of the 15th International Academic MindTrek
               Conference: Envisioning Future Media Environments, MindTrek
               2011, Tampere, Finland, September 28-30, 2011},
  booktitle = {MindTrek},
  publisher = {ACM},
  year      = {2011},
  isbn      = {978-1-4503-0816-8},
  ee        = {http://dl.acm.org/citation.cfm?id=2181037},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}