On p-covalenced association schemes. - Mitsugu Hirasaka; Kyoung-Tark Kim (J. Comb. Theory A, 2011)

Uniqueness of Butson Hadamard matrices of small degrees. - Mitsugu Hirasaka; Kyoung-Tark Kim; Yoshihiro Mizoguchi (J. Discrete Algorithms, 2015)

On Spherical Designs of Some Harmonic Indices. - Yan Zhu 015; Eiichi Bannai; Etsuko Bannai; Kyoung-Tark Kim; Wei-Hsuan Yu (Electron. J. Comb., 2017)

Harmonic Index Designs in Binary Hamming Schemes. - Yan Zhu 015; Eiichi Bannai; Etsuko Bannai; Takuya Ikuta; Kyoung-Tark Kim (Graphs Comb., 2017)