R. Bastide, D. Navarre, and P. Palanque. CHI '02 extended abstracts on Human factors in computing systems, page 516--517. Minneapolis, Minnesota, USA, ACM Press, (2002)
D. Lewin, S. Lachman-Shalem, and B. Grosman. Control Engineering Practice, 15 (7):
793--802(July 2006)Special Issue on Award Winning Applications, 2005 IFAC
World Congress.