in CHALLENGES FOR THE 21ST CENTURY, VOL I: INVESTIGATIONS, PLANNING AND DESIGN/UNDERGROUND SPACE USE/SUPPORT AND LINING OF TUNNELS
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Conference
World Tunnel Congress 1999 on Challenges for the 21St Century, Date: MAY 31-JUN 03, 1999, Location: OSLO, NORWAY, Patrocinadores: Norwegian Tunnelling Soc, Andersen Mek Verksted AS, Dyno Nobel, Norconsult ASA, VS Int, Veidekke-Selmer
