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PDF(1774 KB)
PDF(1774 KB)
The World’s Longest Tunnel
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Imogen Foulkes. Gotthard tunnel: world’s longest and deepest rail tunnel opens in Switzerland [Internet]. 2016 Jun 1 [cited 2016 Sep 1]. Available form: http://www.bbc.com/news/world-europe-36423250.
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Imogen Foulkes. Swiss Gotthard rail tunnel—an engineering triumph [Internet]. 2016 Jun 1 [cited 2016 Sep 1]. Available form: http://www.bbc.com/news/world-europe-36416506.
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Gotthard Base Tunnel [Internet]. San Francisco: Wikimedia Foundation Inc. [cited 2016 Sep 1]. Available form: https://en.wikipedia.org/wiki/Gotthard_Base_Tunnel.
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User: Cooper.ch [Internet]. San Francisco: Wikimedia Foundation Inc. [cited 2016 Sep 1]. Available form: https://commons.wikimedia.org/wiki/User:Cooper.ch.
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The Gotthard Base Tunnel—questions and answers [Internet]. [cited 2016 Sep 1]. Available form: http://files.gadmin.ch/84697?CFID=546c515f-46e4-4621-92fe-9fec017cfab1&CFTOKEN=0.
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AlpTransit Gotthard AG. Animation tunnel drilling machine—Gotthard Base Tunnel [Internet]. 2012 Jun 12 [cited 2016 Sep 1]. Available form: https://www.youtube.com/watch?v=LdIm-ebJOfI.
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