Three-dimensional multiinkdot automata. - Tadayuki Makino; Hidenobu Okabe; Shinya Taniguchi; Makoto Sakamoto; Katsushi Inoue (Artif. Life Robotics, 2005)

Marker versus inkdot over three-dimensional patterns. - Takao Ito; Makoto Sakamoto; Hidenobu Okabe; Hiroshi Furutani; Michio Kono; Satoshi Ikeda (Artif. Life Robotics, 2008)