A Josephson 4 bit RALU for a prototype computer. - Hiroshi Nakagawa; Shin Kosaka; Hiroki Kawamura; Itaru Kurosawa; Masahiro Aoyagi; Youichi Hamazaki; Yoshikuni Okada; Susumu Takada (IEEE J. Solid State Circuits, 1989)

Robustness of Random Walk on a Graph against Adversary Attacks. - Hiroki Kawamura; Satoshi Shiina; Han Nay Aung; Hiroyuki Ohsaki (COMPSAC, 2024)

Obfuscation of Node Centrality in Networks. - Hiroki Kawamura; Ryotaro Matsuo; Hiroyuki Ohsaki (ICOIN, 2025)