Tunnel routier de l'Arlberg
- Safety upgrade of the Arlberg Base Tunnel and Tunnel Perjen. Dans: Tunnelling and Underground Space Technology, v. 19, n. 4-5 (juillet 2004), pp. 310.
- Upgrading the Arlberg tunnel to current safety standards. Dans: Tunnelling and Underground Space Technology, v. 48 (avril 2015), pp. 140-146. (2015):