@journal{backes08gespiegelt,
  author       = {Backes, Michael and D\"{u}rmuth, Markus and Unruh, Dominique},
  title        = {Gespiegelt / Verr\"{a}terische Reflexionen: 
      Wie Brillengl\"{a}ser Geheimnisse verraten},
  journal      = {iX Magazin f\"{u}r Professionelle Informationstechnik},
  volume       = {5},
  month        = {April},
  year         = {2008},
  publisher    = {Heise Verlag, Hannover},
  pages        = {115-117},
  note         = {In German}
}