Hierarchical string pattern matching using dynamic pattern matching machines. - Yahiko Kambayashi; Narao Nakatsu; Shuzo Yajima (COMPSAC, 1979)

Data compression procedures utilizing the similarity of data. - Yahiko Kambayashi; Narao Nakatsu; Shuzo Yajima (AFIPS National Computer Conference, 1981)

A Longest Common Subsequence Algorithm Suitable for Similar Text Strings. - Narao Nakatsu; Yahiko Kambayashi; Shuzo Yajima (Acta Informatica, 1982)

An Optimal TRIE Construction Algorithm for Partial-Match Queries. - Narao Nakatsu (FODO, 1985)

Bounds on the redundancy of binary alphabetical codes. - Narao Nakatsu (IEEE Trans. Inf. Theory, 1991)