1. Google play: Do not disturb - by aimsmobile. https://play.google.com/store/apps/details?id=com.aimsdnd.android.activity&hl=en. Accessed: 17/08/2014.
2. htc do not disturb mode. http://www.htc.com/us/support/htc-one-m8/howto/465120.html. Accessed: 17/08/2012.
3. L. Bao and S. S. Intille. Activity recognition from user-annotated acceleration data. InPervasive computing, pages 1--17. Springer, 2004.
4. E. Bear, C. Magendanz, A. Adams, C. Ledbetter, S. Kaneko, D. Crosier, and R. Plank. Computer system with do not disturb system and method, Oct. 28 2008. US Patent 7,443,971.
5. A. Campbell and T. Choudhury. From smart to cognitive phones.IEEE Pervasive Computing, 11(3):7--11, 2012.