Gotthard Base Tunnel, Switzerland - Railway Technology
Gotthard tunnel: World's longest and deepest rail tunnel opens in Switzerland - BBC News
Gotthard Base Tunnel, Switzerland - Railway Technology
Gotthard Base Tunnel - Herrenknecht AG
The Gotthard Base Tunnel in Switzerland
Getzner Werkstoffe provides expertise for Gotthard tunnel construction
Video World's Longest and Deepest Train Tunnel Unveiled - ABC News
World's Longest and Deepest Rail Tunnel, Through Swiss Alps, Opens - The New York Times
Temporary closure of the Gotthard Base Tunnel - Swiss Travel System Media & Trade Plattform
World's longest, deepest rail tunnel opens in Switzerland after almost 20 years of construction
Sending the Right Signals
Derailment Closes World's Longest Rail Tunnel Until 2024
World's longest tunnel closes to train passengers after derailment
