1. Engelberger J. F., Robotics in Service, Cambridge, MA, MIT Press, (1989).
2. Schraft R. D., Schmierer G. Service Robots, Springer (1998).
3. ISO 8373-2012 Robots and robotic devices - vocabulary.
4. The International Federation of Robotics IFR, http: /www. ifr. org/home.
5. Klimasara W. J. , Pilat Z.: Development of Mechatronic Systems for Human Motor Rehabilitation. In: XII KKR 2012. Progress of Robotics Vol I, pp.35-50, Oficyna Wydawnicza Politechniki Warszawskiej , Warszawa 2012, ISSN 0137-2343 (in Polish).