The Non-existence of Right Cyclic Planar Functions of Degree pn for n >= 2. - Nobuo Nakagawa (J. Comb. Theory A, 1993)

A Construction of Differentially 4-Uniform Functions from Commutative Semifields of Characteristic 2. - Nobuo Nakagawa; Satoshi Yoshiara (WAIFI, 2007)

On equations of finite fields of characteristic 2 and APN functions. - Nobuo Nakagawa (AKCE Int. J. Graphs Comb., 2015)