Yutaka Tokuda Yasuhiro Suzuki Kunihiro Nishimura Tomohiro Tanikawa Michitaka Hirose Controllable vortex display. 50 2008 SIGGRAPH Posters https://doi.org/10.1145/1400885.1400939 conf/siggraph/2008posters db/conf/siggraph/siggraph2008posters.html#TokudaSNTH08