A Characterization of r-Valued Functions Monotonic in an Order Based on Regularity. - Noboru Takagi; Akimitsu Hon-nami; Kyoichi Nakashima (ISMVL, 1998)

Logical Model for Representing Uncertain Statuses of Multiple-Valued Logic Systems Realized by Min, Max and Literals. - Noboru Takagi; Akimitsu Hon-nami; Kyoichi Nakashima (ISMVL, 1999)