1. Center for Disease Control and Prevention,
http://www.cdc.gov/HomeandRecreationalSafety/Falls/adultfalls.html
(last visited August 29, 2011)
2. Tunstall: Sturzdetektion,
http://www.hausnotruf-shop.de/Tunstall-Piper-FallDetector
(last visited July 29, 2011)
3. Sen Cit + monitors ,
http://www.sendtech.co.uk/SeN-Cit/reg_move.shtml
(last visited August 29, 2011)
4. Wu, G., Xue, S.: Portable preimpact fall detector with inertial sensors. IEEE Trans. Neural Syst. Rehabil. Eng. 16(2), 178–183 (2008)
5. Salomon, R., Lüder, M., Bieber, G.: Vorrichtung und Verfahren zur Sturzerkennung. Patentschrift, DE 102009019767 (2009)