1. Arkin, R.Behavior-Based Robotics, MIT Press, Cambridge MA, 1998
2. Asada, M., RoboCup-98: Robot Soccer World Cup II, Proceedings of the Second RoboCup Workshop, Paris, 1998
3. Borenstein, J., Everett, H., Feng, L.Navigating Mobile Robots: Sensors and Techniques, AK Peters, Wellesley MA, 1998
4. Cho, H., Lee, J.-J. (Eds.) Proceedings of the 2002 FIRA World Congress, Seoul, Korea, May 2002
5. InroSoft, http://inrosoft.com, 2006