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2. http://interactive-motion.com/html/hardware.htm

3. Krebs et al. Journal of NeuroEngineering and Rehabilitation 2004 1:5   doi:10.1186/1743-0003-1-5

4. Kahn et al. Robot-assisted movement training for the stroke-impaired arm: Does it matter what the robot does? Journal of Rehabilitation Research and Development Aug/Sept 2006 619-630

5. Burgar et al. Limb Manipulation under patient control 1996 Rehabilitation R&D Center Progress Report

6. Kahn et al. Comparison of Robot-assisted Reaching to Free Reaching in Promoting Recovery from Chronic Stroke Integration of Assistive Technology in the Information Age 2001 39-43

7. Hesse et al. Machines to support motor rehabilitation after stroke: 10 years of experience in Berlin JRRD, Volume 43, Number 5, 2006

8. Kahn LE et al. Robot-assisted reaching exercise promotes arm movement recovery in chronic hemiparetic stroke: A randomized controlled pilot study. J Neuroengineering Rehabil. 2006;3:12.

9. http://www.pdrhealth.com/patient_education/BHG01NE13.shtml

10. http://control.ee.ethz.ch/~ifareg/arm/fig/ARMinKomplett.jpg

11. http://www.asu.edu/news/research/roboticarm_051705.htm  

12. http://www.biodesign.asu.edu/news/3/

13. http://igargoyle.com/archives/exoskelentons/index.html

14. Nef, Tobia, Reiner, Robert ARMin – Design of a Novel Arm Rehabilitation Robot IEEE 2005

15. http://www.sms.mavt.ethz.ch/research/projects/armin/therapy