1. M. Rosheim, “Robot Evolution: The Development of Anthrobots”, New York: John Willey & Sons, 1994.
2. M. Rosheim, “In the Footsteps of Leonardo”, IEEE Robotics and Automation Magazine, June 1997.
3. C. Pedretti, “Leonardo Architect”, Rizzoli International Publications, New York, 1981.
4. N. Tesla, “My Inventions: Autobiography of Nicola Tesla”, Willinston, VT: Hart Brothers, 1983.
5. Myhr, M., “Industrial New Trends: ABB view of the Future”, International Workshop on Industrial Robotics, New Trends and Perspectives (http://robotics.dem.uc.pt/ir99/), Parque das Nações, Lisbon, 1999.