@inproceedings{Alt2015MobileHCI,
 author = {Alt, Florian and Schneegass, Stefan and Sahami Shirazi, Alireza and Hassib, Mariam and Bulling, Andreas},
 title = {Graphical Passwords in the Wild – Understanding How Users Choose Pictures and Passwords in Image-based Authentication Schemes},
 booktitle = {Proceedings of the 17th International Conference on Human-computer Interaction with Mobile Devices and Services},
 series = {MobileHCI '15},
 year = {2015},
 location = {Copenhagen, Denmark},
 numpages = {6},
 publisher = {ACM},
 address = {New York, NY, USA},
}