@inproceedings{Hang:2012:TMI:2399016.2399061, author = {Hang, Alina and De Luca,, Alexander and Hussmann, Heinrich}, title = {Using Icon Arrangement for Fallback Authentication on Smartphones }, booktitle = {In Extended Abstracts of the 14th IFIP TC13 Conference on Human-Computer Interaction}, series = {CHI '14}, year = {2014}, location = {Toronto, Canada}, pages = {}, numpages = {}, publisher = {}, keywords = {fallback authentication, smartphones, icon arrangement}, }