1. Campbell, R., Evans, M., Tucker, M., Quilty, B., Dieppe, P., and Donovan, J. L.: Why don’t patients do their exercises? Understanding non-compliance with physiotherapy in patients with osteoarthritis of the knee. Journal of Epidemiology and Community Health 55(2), pp. 132–138 (2001)
2. Casadio, M., Sanguineti, V., Morasso, P. G., and Arrichiello, V.: Braccio di Ferro: a new haptic workstation for neuromotor rehabilitation. Technology and Health Care 14(3), pp. 123–142 (2006)
3. COST Action TD1006. http://www.rehabilitationrobotics.eu/ (2013)
4. Došen, S., Andersen, A., Kannik, K., Klausen, C., Nielesen, L., Wojtowicz, J., and Popović, D. B.: “Assistive” Forces for the Acquisition of a Motor Skill: Assistance or Disturbance? 1st International Conference on Applied Bionics and Biomechanics. Venice, Italy (2010)
5. Fugl-Meyer, A. R., Jaasko L., Leyman I., Olsson, S., and Steglind, S.: The post-stroke hemiplegic patient. 1. a method for evaluation of physical performance. Scandinavian journal of rehabilitation medicine 7(1), pp. 13–31 (1974)