Deepest Cave, Call of the Abyss – National Geographic Magazine. Også andre links til jordens “indre”.


Deepest Cave, Call of the Abyss – National Geographic Magazine.

http://nalga.wordpress.com/2009/10/04/the-call-of-the-abyss-the-second-branch-in-krubera-cave-has-pushed-to-1554-m/

http://en.wikipedia.org/wiki/Krubera_Cave

https://www.facebook.com/media/set/?set=a.260232627382485.62057.103439883061761&type=1#

http://abkhaziatoday.blogspot.dk/2010/12/worlds-deepest-cave-krubera-voronya.html

http://sobrefotos.com/2010/04/23/voronya-cave-la-cueva-mas-profunda/

http://www.worldmustbcrazy.com/2011/03/krubera-cave-deepest-cave-in-world.html

http://www.scurion.ch/jm/index.php?option=com_content&view=article&id=109&catid=53&Itemid=79

http://www.sofluna.com/krubera-deepest-caves/