Constructing rheologically deformable virtual objects. - Masafumi Kimura; Yuuta Sugiyama; Seiji Tomokuni; Shinichi Hirai (ICRA, 2003)

Crawling and jumping of deformable soft robot. - Yuuta Sugiyama; Shinichi Hirai (IROS, 2004)

Circular/Spherical Robots for Crawling and Jumping. - Yuuta Sugiyama; Ayumi Shiotsu; Masashi Yamanaka; Shinichi Hirai (ICRA, 2005)

Crawling and Jumping by a Deformable Robot. - Yuuta Sugiyama; Shinichi Hirai (Int. J. Robotics Res., 2006)