Dialogue and causality: Global description from local observations and vague communications. - Koji Sawa; Yukio-Pegio Gunji (Biosyst., 2007)

Cell Motility Viewed as Softness. - Koji Sawa; Igor Balaz; Tomohiro Shirakawa (Int. J. Artif. Life Res., 2012)

Modeling biconditionals: Equivalence in an uncertain world. - Koji Sawa; Junki Yokokawa; Tatsuji Takahashi (CogSci, 2013)

An emergence of formal logic induced by an internal agent. - Koji Sawa; Yukio-Pegio Gunji (Biosyst., 2014)

Logic as a complex network. - Koji Sawa (CoRR, 2015)

The Double Homunculus model of self-reflective systems. - Koji Sawa; Abir U. Igamberdiev (Biosyst., 2016)

The emergence of a fractal structure of formal logic via the spatiotemporal reflexive self-identification. - Koji Sawa; Abir U. Igamberdiev (Biosyst., 2021)