Finger Sculpting with Digital Clay: 3D Shape Input and Output through a Computer-Controlled Real Surfac. - Jarek Rossignac; Mark Allen; Wayne J. Book; Ari Glezer; Imme Ebert-Uphoff; Christopher D. Shaw; David Rosen 001; Stephen Askins; Jing Bai; Paul Bosscher; Joshua Gargus; ByungMoon Kim; et al. (Shape Modeling International, 2003)