Compact Underground Radar System. - Ichiro Sugimoto; Takashi Kikuta; Masaru Tsunasaki (MVA, 1988)

Detection of Leak Location in a Pipeline by Acoustic Signal. - Umut Yunus; Masaru Tsunasaki; Yiwei He; Masanobu Kominami; Katsumi Yamashita (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2008)