Kyoichi Okamoto, Takeshi Toyama, and Tomoe Komoriya, “OCEAN DECONTAMINATION: HIGH ABILITY REMOVAL METHOD TO RADIOACTIVE CESIUM FROM OCEAN SLUDGE BY USING MICRO BUBBLES AND ACTIVATING MICROORGANISMS”, INTERNATIONAL JOURNAL OF GEOMATE, vol. 12, no. 32, pp. 57–62, Nov. 2016.