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Keywords:
CAMPENON BERNARD SGE,
RAILWAYS,
UNDERGROUND,
METROS,
TRANSPORT,
CITIES,
URBAN,
CONSTRUCTION,
PROJECTS,
ROCKS,
TUNNELS,
SHAFTS,
STATIONS,
NATM,
NEW,
AUSTRIAN,
TUNNELLING,
METHODS,
ARCHAEOLOGY,
INVESTIGATIONS,
AQUEDUCTS,
DELAYS,
POLLUTION,
AIR,
TRAFFIC,
GEOLOGY,
TBM,
BORING,
MACHINES,
MACHINERY,
EXCAVATIONS,
SAFETY,
TRAINS,
VENTILATION,
ESCALATORS,
ROLLING STOCK,
ATHENS,
GREECE,
EUROPE
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© Thomas Telford and ICE
1999
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