Flexible and Transparent User Authentication for Mobile Devices.

Nathan L. Clarke Sevasti Karatzouni Steven Furnell Flexible and Transparent User Authentication for Mobile Devices. 1-12 2009 SEC http://dx.doi.org/10.1007/978-3-642-01244-0_1 conf/sec/2009 db/conf/sec/sec2009.html#ClarkeKF09