1. Bridging the NATM information gap;Braun,1991
2. Shotcreting innovations in the Shing Mun tunnels;Bergfors;Tunnels & Tunneling,1990
3. Group response curves for rock tunnels;Brown;ASCE Jrnl of Geotechnical Engineering,1983
4. Shotcrete in Tunneling: Status Report 1991 (International Tunneling Association);Deix,1991
5. Shotcrete in Tunneling: Status Report 1991 (International Tunneling Association);Dierckx,1991