@inproceedings{deluca2012,
 author = {De Luca,, Alexander and Hang,, Alina and Brudy,, Frederik and Lindner,, Christian and Hussmann,, Heinrich},
 title = {Touch me once and i know it's you!: implicit authentication based on touch screen patterns},
 booktitle = {Proceedings of the 2012 ACM annual conference on Human Factors in Computing Systems},
 series = {CHI '12},
 year = {2012},
 isbn = {978-1-4503-1015-4},
 location = {Austin, Texas, USA},
 pages = {987--996},
 numpages = {10},
 url = {http://doi.acm.org/10.1145/2208516.2208544},
 doi = {10.1145/2208516.2208544},
 acmid = {2208544},
 publisher = {ACM},
 address = {New York, NY, USA},
 keywords = {implicit authentication, password pattern, security},
}