1. Web Site of Ministry of the Environment, Government of Japan, Outline of the Implementation of the Act on Special Measures, available at: http://josen.env.go.jp/en/framework/
2. Web Site of Ministry of the Environment, Government of Japan, Progress in the Special Decontamination Area (as of April1, 2017), available at: http://josen.env.go.jp/en/decontamination/
3. Web Site of Ministry of the Environment, Government of Japan, Decontamination Guidelines, available at: http://josen.env.go.jp/en/framework/
4. Web Site of Ministry of the Environment, Government of Japan, Aspect for 5 year ad hoc Policy on Interim Storage Facility (1), available at: http://josen.env.go.jp/en/storage/
5. Cost and Effectiveness of Decontamination Strategies in Radiation Contaminated Areas in Fukushima in Regard to External Radiation Dose