Making Collaborative Interactive Art "Ohka Rambu". - Ryota Oiwa; Haruhiro Katayose; Ryohei Nakatsu (ICEC, 2005)

Crossing colorful communication: a system for enhancing sound communication. - Ryota Oiwa; Mitsuyo Hashida; Haruhiro Katayose (Advances in Computer Entertainment Technology, 2007)