@inproceedings {FFS2011,
    author    = "{Sebastian Fudickar and Sebastian Faerber and Bettina Schnor}",
    title     = "{KopAL Appointment User-interface - An Evaluation with Elderly}", 
    booktitle = "{Affect and Behaviour Related Assistance (ABRA'11)}", 
    year      = "{2011}", 
    address   = "{Kreta}"
}