Arlberg Road Tunnel
- Safety upgrade of the Arlberg Base Tunnel and Tunnel Perjen. In: Tunnelling and Underground Space Technology, v. 19, n. 4-5 (July 2004), pp. 310.
- Upgrading the Arlberg tunnel to current safety standards. In: Tunnelling and Underground Space Technology, v. 48 (April 2015), pp. 140-146. (2015):