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http://www.tepco.co.jp/cc/press/betu12_j/images/120524j0105.pdf
(Accessed: 21 May 2015) (in Japanese).
2. United Nations Scientific Committee on the Effects of Atomic Radiation. Sources and Effects of Ionizing radiation, UNSCEAR 2008 Report to the General Assembly, with scientific annexes, Volume II: Scientific Annex E: Effects of ionizing radiation on non-human biota,
http://www.unscear.org/docs/reports/2008/11-80076_Report_2008_Annex_E.pdf
(Accessed: 21 May 2015).
3. International Commission on Radiological Protection. Environmental Protection: The Concept and Use of Reference Animals and Plants. ICRP Publication 108 (2009).
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