1. IEEE Standard for Local and metropolitan area networks - Part 15.6: Wireless Body Area Networks 2012. http://standards.ieee.org/findstds/standard/802.15.6--2012.html. IEEE Standard for Local and metropolitan area networks - Part 15.6: Wireless Body Area Networks 2012. http://standards.ieee.org/findstds/standard/802.15.6--2012.html.
2. August. http://august.com/. August. http://august.com/.
3. Lindsey Banks. Best bone conduction headphones of 2015. http://www.everydayhearing.com/hearing-technology/articles/bone-conduction-headphones/ July 2015. Lindsey Banks. Best bone conduction headphones of 2015. http://www.everydayhearing.com/hearing-technology/articles/bone-conduction-headphones/ July 2015.
4. Lessons learned from the deployment of a smartphone-based access-control system
5. Device-Enabled Authorization in the Grey System