@inproceedings{eiband2017chi, 
 author = {Eiband, Malin and Khamis, Mohamed and von Zezschwitz, Emanuel and Hussmann, Heinrich and Alt, Florian}, 
 title = {Understanding Shoulder Surfing in the Wild: Stories from Users and Observers}, 
 booktitle = {Proceedings of the 35th Annual ACM Conference on Human Factors in Computing Systems}, 
 series = {CHI '17}, 
 doi = {10.1145/3025453.3025636}, 
 url = {http://dx.doi.org/10.1145/3025453.3025636}, 
 year = {2017},
 location = {Denver, CO, USA}, 
 publisher = {ACM},
 address = {New York, NY, USA},
}