A barrier free systems for the next generation. - Kazuo Tsuchiya; Yoshihiko Tachibana; Midori Shoji; Shinji Iizuka (HCI, 2001)

Real Number Representations of Graph-Directed IFS Attractors. - Yohji Akama; Shinji Iizuka (CCA, 2005)

Effective continuities on effective topological spaces. - Shinji Iizuka (J. Complex., 2006)