Polytopes and the Mean Value Property. - Katsunori Iwasaki (Discret. Comput. Geom., 1997)

Polynomial Invariants and Harmonic Functions Related to Exceptional Regular Polytopes. - Katsunori Iwasaki; Atsufumi Kenma; Keiji Matsumoto (Exp. Math., 2002)

Cubic harmonics and Bernoulli numbers. - Katsunori Iwasaki (J. Comb. Theory A, 2012)