http://www3.nhk.or.jp/lnews/mito/20181219/1070004981.html

https://www.bengo4.com/internet/n_8999/

https://headlines.yahoo.co.jp/hl?a=20181218-00000019-asahi-soci

https://headlines.yahoo.co.jp/hl?a=20181217-00010002-abema-soci&p=1

https://headlines.yahoo.co.jp/hl?a=20181218-00000042-asahi-soci

http://agora-web.jp/archives/2036025.html

https://www.nikkansports.com/general/nikkan/news/201812120000731.html

http://www.tokyo-np.co.jp/article/column/editorial/CK2018121702000144.html

https://headlines.yahoo.co.jp/hl?a=20181217-00000080-kyodonews-soci

http://bunshun.jp/articles/-/9983

https://dot.asahi.com/wa/2018121400078.html

https://www.bengo4.com/internet/n_8991/

https://www.asahi.com/articles/ASLCQ3TCDLCQUCLV007.html

https://headlines.yahoo.co.jp/hl?a=20181214-00000047-asahi-soci

https://www.sankei.com/affairs/amp/181214/afr1812140009-a.html

https://headlines.yahoo.co.jp/hl?a=20181214-00033613-mbcnewsv-l46

https://www.asahi.com/articles/ASLD60J5QLD5ULFA048.html

https://headlines.yahoo.co.jp/hl?a=20181214-00010010-nishinpc-soci

https://headlines.yahoo.co.jp/hl?a=20181214-00010003-fnnprimev-soci

https://headlines.yahoo.co.jp/hl?a=20181213-00000620-san-soci

https://headlines.yahoo.co.jp/hl?a=20181213-00008973-bengocom-soci

https://headlines.yahoo.co.jp/hl?a=20181213-00000028-mai-soci

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https://news.goo.ne.jp/article/mainichi/nation/mainichi-20181212k0000m040223000c.html

https://www.yomiuri.co.jp/national/20181213-OYT1T50092.html

https://gigazine.net/news/20181211-jackal-nose-for-job/

https://gigazine.net/news/20181207-yoshidaryo-interview/

https://blog.goo.ne.jp/tks-naito/e/30729fc5a006357536af3b79adb63ed8

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http://www6.nhk.or.jp/nhkpr/post/original.html?i=16986