Nancy Creek Tunnel
- Economical solution for tunnel ground support-DSI prepared to adapt roof bolt system to changing ground conditions. Nancy Creek Tunnel, Atlanta, Georgia, USA. Dans: DSI Info, n. 13 ( 2005- 2006), pp. 82.
- Wirtschaftliche Lösung zur Tunnelausbausicherung – DSI passt Firstankersysteme wechselnden geologischen Bedingungen an. Nancy Creek Tunnel, Atlanta, Georgia, USA. Dans: DSI Info, n. 13 ( 2005- 2006), pp. 82.