1. Schraft RD, Degenhart E, Hägele M, Kahmeyer M. New robot applications in production and service. In: Proceedings of the IEEE international workshop on advanced robotics, Tsukuba, Japan, 8–9 November 1993. p. 15–23.
2. OSHA technical manual, industrial robots and robot system safety, section IV: chapter 4. Available from: 〈http://www.osha.gov/dts/osta/otm/otm_iv/otm_iv_4.html〉 [last accessed 10.09.06].
3. Natonek E, Zimmerman T, Fluckiger L. Model based vision as feedback for virtual reality robotics environment. In: Proceedings of the IEEE virtual reality annual international symposium (VRAIS), Los Alamitos, CA, 11–15 March 1995. p. 110–7.
4. Leveraging on a virtual environment for robot programming by demonstration;Aleoti;Rob Autonomous Syst,2004
5. Robot work cell simulation, University of Missouri, Rolla, MO. Available from: 〈http://web.umr.edu/~vrpl/proj-robot.htm〉 [last accessed 10.09.06].