Bottom-up pyramid cellular acceptors with three-dimensional layers. - Makoto Sakamoto; Kaoru Kajisa; Naoko Tomozoe; Takao Ito; Hiroshi Furutani; Michio Kono; Satoshi Ikeda (Artif. Life Robotics, 2008)

Hierarchies based on the number of cooperating systems of three-dimensional finite automata. - Yasuo Uchida; Makoto Sakamoto; Satoshi Okatani; Kaoru Kajisa; Masatsugu Fukuda; Tomoya Matsukawa; Ayumi Taniue; Takao Ito; Hiroshi Furutani; Michio Kono (Artif. Life Robotics, 2009)