Now you see me, now you don't: protecting smartphone authentication from shoulder surfers A De Luca, M Harbach, E von Zezschwitz, ME Maurer, BE Slawik, ... Proceedings of the SIGCHI Conference on Human Factors in Computing Systems …, 2014 | 121 | 2014 |
Out of Shape, Out of Style, Out of Focus A Butz, G Beyer, A Hang, D Hausen, F Hennecke, F Lauber, S Loehmann, ... Informatik-Spektrum 37 (5), 390-396, 2014 | 1 | 2014 |