The seven graphs whose H-transformations are uniquely determined. - Kiyoshi Ando; Hideo Komuro (Ars Comb., 1997)

Diagonal Flips in Triangulations on Closed Surfaces with Minimum Degree at Least 4. - Hideo Komuro; Atsuhiro Nakamoto; Seiya Negami (J. Comb. Theory B, 1999)

Diagonal flips of pseudo triangulations on the sphere. - Hideo Komuro; Kiyoshi Ando (Ars Comb., 2001)

Tight quadrangulations on the sphere. - Hideo Komuro; Kiyoshi Ando; Atsuhiro Nakamoto (Discret. Math., 2006)