◇ Candidatus Desulforudis audaxviator - Wikipedia
http://ja.wikipedia.org/wiki/Candidatus_Desulforudis_audaxviator
◇ 人類の地下到達点にまつわるエトセトラ - web R25
http://r25.yahoo.co.jp/fushigi/wxr_detail/?id=20110218-00005350-r25
◇ Mponeng - Wikipedia, the free encyclopedia
http://en.wikipedia.org/wiki/Mponeng
◇ AngloGold Ashanti Virtual Mine Tour
http://www.anglogold.co.za/subwebs/VirtualTour/ipix.asp?tour=01