1. KIPR: Botball robotics education. http://www.botball.org (KISS, Norman 2005)
2. R. Manseur: Hardware competitions in engineering education, Front. Educ. Conf. 2, F3C/5–F3C/8 (2000)
3. Robo Cup Junior: RoboCupJunior official site. http://www.robocupjunior.org/ , (Acroname Robotics, Boulder 2006)
4. C. Stein: Botball: Autonomous students engineering autonomous robots, Comput. Educ. J. 13(2), 72–80 (2003)
5. FIRST: http://www.usfirst.org/ (FIRST, Manchester 2006)