Masakazu Nasu Homomorphisms of graphs and their global maps. [Citation Graph (0, 0)][DBLP] Graph Theory and Algorithms, 1980, pp:159-170 [Conf]

Sadaki Hirose, Masakazu Nasu Left Universal Context-Free Grammars and homomorphic Characterizations of Languages [Citation Graph (0, 0)][DBLP] Information and Control, 1981, v:50, n:2, pp:110-118 [Journal]

Masakazu Nasu, Namio Honda Mappings Induced by PGSM-Mappings and Some Recursively Unsolvable Problems of Finite Probabilistic Automata [Citation Graph (0, 0)][DBLP] Information and Control, 1969, v:15, n:3, pp:250-273 [Journal]

Masakazu Nasu, Namio Honda A Context-Free Language Which is not Acceptable by a Probabilistic Automaton [Citation Graph (0, 0)][DBLP] Information and Control, 1971, v:18, n:3, pp:233-236 [Journal]