http://gigazine.net/news/20141229-microbes-deepest-marine/

http://news.livedoor.com/article/detail/9623390/

http://www.huffingtonpost.jp/2014/12/31/the-tokyo-electric-power-company_n_6399252.html?ncid=fcbklnkjphpmg00000001

http://www.tokyo-np.co.jp/s/article/2014123090070054.html

http://www.e-hon.ne.jp/bec/SA/Detail?refBook=978-4-06-288297-2&Rec_id=1010

http://gigazine.net/news/20141229-microbes-deepest-marine/

http://news.livedoor.com/article/detail/9623390/

http://www.huffingtonpost.jp/2014/12/31/the-tokyo-electric-power-company_n_6399252.html?ncid=fcbklnkjphpmg00000001

http://www.tokyo-np.co.jp/s/article/2014123090070054.html

http://www.e-hon.ne.jp/bec/SA/Detail?refBook=978-4-06-288297-2&Rec_id=1010