@inproceedings {SSLS2011,
    author    = "{Thomas Scheffler and Sven Schindler and Marcus Lewerenz and Bettina Schnor}",
    title     = "{A Privacy-Aware Localization Service for Healthcare Environments}", 
    booktitle = "{Privacy and Security in Pervasive Environments (PSPAE'11)}", 
    year      = "{2011}", 
    address   = "{Kreta}" 
}