3DCG authoring system using turtle metaphor. - Katsuhide Tsushima; Masayuki Ueno; Takeshi Nishiki; Noboru Ashida; Kazuma Tanida (Advances in Computer Entertainment Technology, 2006)

Simplified motion language for 3D computer animation with turtle metaphor. - Masayuki Ueno; Kazuma Tanida; Katsuhide Tsushima (Advances in Computer Entertainment Technology, 2007)