1. Unsigned Editorial (2004) Toward 2025 Human-Robot Co-existence Society: The next generation robot vision seminar report. Japanese Ministry of Economy, Trade and Industry (METI), Tokyo
2. Ge SS (2007) Social robotics: The integration of advances in engineering and computer science. In: The 4th annual international conference organized by Electrical Engineering/Electronics, Computer, Telecommunication and Information Technology (ECTI) Association, Chiang Rai, Thailand, May 9–12, 2007. Keynote Speaker
3. Unsigned Editorial (2007) Long-term strategic guidelines “Innovation 25” (unofficial translation) at 60. Cabinet Office, Government of Japan. Available via www, http://www.cao.go.jp/innovation/index.html , Accessed Sep 25 2008
4. Lovgren S (2006) A robot in every home by 2020, South Korea Says. In: National Geographic News. Available via www, http://news.nationalgeographic.com/news/2006/09/060906-robots.html , Accessed Feb 12 2009
5. Etengoff A (2008) US military to develop ‘ethical’ robots. In: ITEXAMINER. Available via www, http://www.itexaminer.com/us-military-to-develop-ethical-robots.aspx , Accessed December 4 2008