http://www.chunichi.co.jp/s/article/2013012190200051.html

http://www.47news.jp/CN/201301/CN2013012101002200.html

http://www.yomiuri.co.jp/national/news/20130121-OYT1T00729.htm?from=main2

http://www.asahi.com/shimen/articles/TKY201301200384.html

http://gigazine.net/news/20130118-pdf-xchange-viewer/

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http://www.utp.or.jp/shohyou/2013/01/06/oaeieaeyuoaeecae16codhuithy/

http://www.shijyukukai.jp/news/?id=6158

http://www.gifu-np.co.jp/news/zenkoku/main/CO20130120010017400200041.shtml

http://gigazine.net/news/20130114-calcutray/

http://kagehinata64.blog71.fc2.com/blog-entry-483.html

http://gigazine.net/news/20130118-the-most-polluted-cities/

http://headlines.yahoo.co.jp/hl?a=20130119-00000223-mailo-l33

http://www.yomiuri.co.jp/national/news/20130119-OYT1T00510.htm

http://gigazine.net/news/20130116-miro-video-converter/

http://www.asahi.com/business/update/0117/NGY201301170004.html

http://sankei.jp.msn.com/affairs/news/130118/crm13011818550015-n1.htm

http://headlines.yahoo.co.jp/hl?a=20130118-00000795-yom-soci

http://news.goo.ne.jp/article/jiji/nation/jiji-130118X203.html http://headlines.yahoo.co.jp/hl?a=20130118-00000096-mai-soci http://mainichi.jp/opinion/news/20130119k0000m070096000c.html

http://www.itmedia.co.jp/mobile/articles/1301/16/news102.html

http://kounomaki.blog84.fc2.com/blog-entry-615.html

http://www.nikkei.com/article/DGXNASFD1701M_X10C13A1CN8000/

http://toyokeizai.net/articles/-/12515

http://kanpou.npb.go.jp/20130117/20130117g00009/20130117g000090000f.html

http://mainichi.jp/select/news/20130118k0000m040097000c.html

http://www.nikkei.com/article/DGXNASGN16025_W3A110C1000000/

http://www.fben.jp/bookcolumn/2013/01/post_3503.html

http://www.westlawjapan.com/p_affairs/2013/20130116_s.html

http://headlines.yahoo.co.jp/hl?a=20130116-00000104-jij-soci

http://www.47news.jp/CN/201301/CN2013011601001393.html