Number-conserving reversible cellular automata and their computation-universality

Morita, Kenichi; Imai, Katsunobu

RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications, Volume 35 (2001) p. 239-258

Universality of reversible hexagonal cellular automata

Morita, Kenichi; Margenstern, Maurice; Imai, Katsunobu

RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications, Volume 33 (1999) p. 535-550