Some properties of four-dimensional parallel Turing machines. - Yasuo Uchida; Makoto Sakamoto; Ayumi Taniue; Ryuju Katamune; Takao Ito; Hiroshi Furutani; Michio Kono (Artif. Life Robotics, 2010)

Bottom-up pyramid cellular acceptors with four-dimensional layers. - Yasuo Uchida; Takao Ito; Makoto Sakamoto; Takashi Ide; Kazuyuki Uchida; Ryuju Katamune; Hiroshi Furutani; Michio Kono; Satoshi Ikeda; Tsunehiro Yoshinaga (Artif. Life Robotics, 2012)