Nagatomo, M., M. Sakamoto, C. Sun, S. Yano, S. Ikeda, T. Ito, T. Ito, Y. Uchida, and T. Yoshinaga. “Four-Dimensional Homogeneous Systolic Pyramid Automata”. Journal of Telecommunication, Electronic and Computer Engineering (JTEC), vol. 9, no. 2-5, June 2017, pp. 75-77, https://jtec.utem.edu.my/jtec/article/view/2397.