1. The Second Heinenoord tunnel; the main monitoring results;Bakker,2001
2. Grout pressure measurements, Sophia Rail Tunnel, Delft Cluster Report 710504/10 (in Dutch);Bezuijen,2001
3. Observation of lining pressure due to shield tunnelling;Hashimoto,2002
4. Big Brother for TBM's;Kaalberg;Tunnels and Tunneling International,2001
5. Design features of the Sophia Rail Tunnel in the Betuweroute;Stive;Tunnelling and Underground Space Technology,1999