1. Murai, S. et al. (2008), "Systematic study for "kawaii" products (The third report) - Comparison of "kawaii" between 2D and 3D-" Proceedings of VRSJ2008. (InJapanese)
2. Ohkura, M., and Aoto, T. (2007), "Systematic Study for "Kawaii" Products," Proceedings of the 1stInternational Conference on Kansei Engineering and Emotion Research (KEER2007), Sapporo, Japan.