Universal Computing in Reversible and Number-Conserving Two-Dimensional Cellular Spaces. - Kenichi Morita; Yasuyuki Tojima; Katsunobu Imai; Tsuyoshi Ogiro (Collision-Based Computing, 2002)

Classification and Universality of Reversible Logic Elements with One-Bit Memory. - Kenichi Morita; Tsuyoshi Ogiro; Keiji Tanaka; Hiroko Kato (MCU, 2004)

Simple Universal Reversible Cellular Automata in Which Reversible Logic Elements Can Be Embedded. - Kenichi Morita; Tsuyoshi Ogiro (IEICE Trans. Inf. Syst., 2004)

Nondegenerate 2-State 3-Symbol Reversible Logic Elements Are All Universal. - Tsuyoshi Ogiro; Atsushi Kanno; Keiji Tanaka; Hiroko Kato; Kenichi Morita (Int. J. Unconv. Comput., 2004)

Universality of 2-State 3-Symbol Reversible Logic Elements - A Direct Simulation Method of a Rotary Element. - Tsuyoshi Ogiro; Artiom Alhazov; Tsuyoshi Tanizawa; Kenichi Morita (IWNC, 2009)

Non-degenerate 2-State Reversible Logic Elements with Three or More Symbols Are All Universal. - Kenichi Morita; Tsuyoshi Ogiro; Artiom Alhazov (J. Multiple Valued Log. Soft Comput., 2012)

How Can We Construct Reversible Machines Out of Reversible Logic Element with Memory? - Kenichi Morita; Tsuyoshi Ogiro (Computing with New Resources, 2014)

Universality Problems on Reversible Logic Elements with 1-Bit Memory. - Yuta Mukai; Tsuyoshi Ogiro; Kenichi Morita (Int. J. Unconv. Comput., 2014)