Terowongan Dasar Gotthard
terowongan di Swiss
Lepas bebas dari semua hambatan.
Referensi
Pranala luar
Wikimedia Commons memiliki media mengenai Gotthard Base Tunnel.
- Alptransit Gotthard AG – Official project site
- Study on the optional Use of Jet Fans in the Gotthard Base Tunnel near the Portals to support the Emergency Ventilation
- (Jerman) Brochure for the Porta Alpina project
- Overall project writeup by SpiegelOnline, plus a proposed tourist elevator (December 2006)
- (Prancis) TSR "Gotthard: From Dream to Nightmare" "Temps Present", 24 May 2007
- (Jerman) AGN Erstfeld Amsteg Constructors Web Site (many Photos and Designs)
- (Jerman)/(Italia) Faido Bodio Constructors Web Site (many Photos and Designs)