An Extension of the Notion of Relativization to Hilbert's ϵ-Symbol. - Masazumi Hanazawa (Math. Log. Q., 1980)

An Interpolation Theorem in Many-Valued Logic. - Masazumi Hanazawa; Mitio Takano (J. Symb. Log., 1986)

Generating Most Parsimonious Reconstructions on a Tree: A Generalization of the Farris-Swofford-Maddison Method. - Masazumi Hanazawa; Hiroshi Narushima; Nobuhiro Minaka (Discret. Appl. Math., 1995)

A More Efficient Algorithm for MPR Problems in Phylogeny. - Hiroshi Narushima; Masazumi Hanazawa (Discret. Appl. Math., 1997)