1. Zweifel, P., Felder, S., Meiers, M.: Ageing of Population and Health care Expenditure: a Red Herring? Health Economics 8, 485–496 (1999)
2. Brewer, K., Ciolek, C., Delaune, M.F.: Falls in Community Dwelling Older Adults: Introduction to The Problem. In: APTA Continuing Education Series, July 2007, pp. 38–46 (2007)
3. Lindemann, U., Hock, A., Stuber, M.: Evaluation of a Fall Detector Based on accelerometers: a pilot study. Medical & Biological Engineering & Computing 43, 1146–1154 (2005)
4. Alwan, M., Felder, R.A.: Eldercare Technology for Clinical Practitioners. Humana Press, Totowa (2007)
5. Mathie, M.J.: Monitoring and Interpreting Human Movement Patterns Using a Tri-axial Accelerometer. Ph.D. Thesis, New South Wales, Sydney, Australia (2003)