1. Agriculture, Forestry and Fisheries Technology Council; “Preparation of Radioactive Material Concentration Distribution Map of Agricultural Soil—Attachment 4—Analysis Values of Radioactive Cesium in Farmland Soil (in Japanese),” pp. 5, (2011), Retrieved 12th July 2021 from https://www.affrc.maff.go.jp/docs/press/pdf/110830-24.pdf
2. Akiyama, Y., N. Nomura, F. Mishima and S. Nishijima; “Possibility of Applying Superconducting High-gradient Magnetic Separation to Volume Reduction of Cesium-Contaminated Soil,” Teion Kogaku, 55, 172–178 (2020)
3. Fuji, K., S. Ikeda, A. Akama, M. Komatsu, M. Takahashi and S. Kaneko; “Vertical Migration of Radiocesium and Clay Mineral Composition in Five Forest Soils Contaminated by the Fukushima Nuclear Accident,” Soil Sci. Plant Nutr., 60, 751–764 (2014)
4. Inagaki, M., H. Yamanishi, G. Wakabayashi, S. Hohara, T. Itoh and M. Furukawa; “Radioactive Cesium Concentration in Topsoil for Each Grain Size Due to the Accident of Fukushima Daiichi Nuclear Power Plant,” Annual Report of Kinki University Atomic Energy Research Institute, 52, 7–18 (2015)
5. Komatsu, Y.; What to do about the Cesium: Basic Knowledge for Decontamination of Fukushima Nuclear Power Plant Accident (Cesium wo dousuru: Fukushima Genpatsu Jiko Josen no tameno Kiso Chishiki), pp. 5–23, and 142, Nikkan Kogyo Shinbunsha, Tokyo, Japan (2012)