Deterministic One-Way Simulation of Two-Way Real-Time Cellular Automata and Its Related Problems. - Hiroshi Umeo; Kenichi Morita; Kazuhiro Sugata (Inf. Process. Lett., 1982)

The complexity of some decision problems about two-dimensional array grammars. - Kenichi Morita; Yasunori Yamamoto; Kazuhiro Sugata (Inf. Sci., 1983)

On two-dimensional pattern-matching languages and their decision problems. - Kenichi Morita; Kaoru Nakazono; Kazuhiro Sugata (Inf. Sci., 1986)

Two-Dimensional Three-Way Array Grammars and their Acceptors. - Kenichi Morita; Yasunori Yamamoto; Kazuhiro Sugata (Int. J. Pattern Recognit. Artif. Intell., 1989)

Context-sensitivity of Two-Dimensional Regular Array Grammars. - Yasunori Yamamoto; Kenichi Morita; Kazuhiro Sugata (Int. J. Pattern Recognit. Artif. Intell., 1989)

Two-Dimensional Three-Way Array Grammars and their Acceptors. - Kenichi Morita; Yasunori Yamamoto; Kazuhiro Sugata (Array Grammars, Patterns and Recognizers, 1989)

Context-sensitivity of Two-Dimensional Regular Array Grammars. - Yasunori Yamamoto; Kenichi Morita; Kazuhiro Sugata (Array Grammars, Patterns and Recognizers, 1989)