Coba jelasin Lihat pula dari Terowongan Dasar Gotthard dong

Study on the optional Use of Jet Fans in the Gotthard Base Tunnel near the Portals to support the Emergency Ventilation

Brochure for the Porta Alpina project

Overall project writeup by SpiegelOnline, plus a proposed tourist elevator (December 2006)

TSR "Gotthard: From Dream to Nightmare" "Temps Present", 24 May 2007

AGN Erstfeld Amsteg Constructors Web Site  (many Photos and Designs)

/ Faido Bodio Constructors Web Site  (many Photos and Designs)