https://www.jiji.com/jc/article?k=2018031501211

https://headlines.yahoo.co.jp/hl?a=20180315-00010001-sanyo-l33

https://headlines.yahoo.co.jp/hl?a=20180315-00000056-mai-soci http://www.courts.go.jp/app/files/hanrei_jp/572/087572_hanrei.pdf

https://www3.nhk.or.jp/news/html/20180315/k10011365871000.html

http://www.kyoto-np.jp/politics/article/20180315000119 http://web.archive.org/web/20130517214655/http://www.tmi.gr.jp/staff/associate/n_hiraki.html