Daisuke Noguchi, Kaori Ohtsu, Yuichi Bannai, Ken-ichi Okada. Scent Presentation Expressing Two Smells of Different Intensity Simultaneously. In Michitaka Hirose, Dieter Schmalstieg, Chadwick A. Wingrave, Kunihiro Nishimura, editors, Proceedings of the Joint Virtual Reality Conference of EGVE - the 15th Eurographics Symposium on Virtual Environments, ICAT, EuroVR, Lyon, France, 2009. pages 53-60, Eurographics Association, 2009. [doi]