1. Mcafee, McAfee Threats Report: Second Quarter 2011 (2011)
2. Boyle, M., Klausner, A., Starobinski, D., Trachtenberg, A., Wu, H.: Gait-based User Classification Using Phone Sensors. ipsit.bu.edu, pp. 395–396,
http://ipsit.bu.edu/documents/mobisys11.pdf
3. Mantyjarvi, J., Lindholm, M., Vildjiounaite, E., Makela, S., Ailisto, H.: Identifying users of portable devices from gait pattern with accelerometers. In: IEEE International Conference on Acoustics, Speech, and Signal Processing, Proceedings(ICASSP 2005), vol. 2, pp. ii–973. IEEE (2005),
http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=1415569
4. Gafurov, D., Helkala, K., Søndrol, T.: Biometric Gait Authentication Using Accelerometer Sensor. Journal of Computers 1(7), 51–59 (2006),
http://academypublisher.com/ojs/index.php/jcp/article/view/277
5. Gafurov, D., Snekkenes, E.: Gait Recognition Using Wearable Motion Recording Sensors. EURASIP Journal on Advances in Signal Processing 2009, 1–17 (2009),
http://www.hindawi.com/journals/asp/2009/415817.html