Underground space [electronic resource] : the 4th dimension of metropolises : Proceedings of the World Tunnel Congress Prague, Czech Republic, 5-10 May 2007 /

Antzeko izenburuak

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• Some examples of underground development in Europe/
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• North American tunneling 2006 : proceedings of the North American tunneling conference 2006 ;10-15 June 2006, Chicago, USA /
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  Argitaratua: (2006)