1. Nef T, Colombo G, Riener R. (2005). [ARMin - robot for movement therapy of the upper extremities]. Automatisierungstechnik 53(12):597-606.
2. Colombo G, Jorg M, Jezernik S. (2002). [Automated locomotor training on the treadmill]. Automatisierungstechnik 50(6):287-95.
