1. Aichi Micro Intelligent Corporation: http://www.aichi-mi.com/
2. Atmel: http://www.atmel.com/
3. Bae, H., Byun, K., Jang, H.: A study on the haptic effect display for interactive haptic Game. In: Proceeding of Korea Institute of Information Scientists and Engineers, vol. 33, no. 1 (2006)
4. CodeVision: http://www.codevision.be/
5. Conger, D.: Physics Modeling for Game Programmers. Thomson (2004)