1. Free form surface measurement method and machine qualification for high speed milling;Dugas,2002
2. Les robots parallèles;Merlet,1990
3. http://www-sop.inria.fr/coprin/equipe/merlet/merlet.html, accessed June 2003.
4. http://www.space.mech.tohoku.ac.jp/research/hexa/hexa-e.html, accessed June 2003.
5. I. Bonev, The true origins of parallel robots, ParalleMIC, available from http://www.parallemic.org/Reviews/Review007.html, accessed June 2003.