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

Geahča maid

• Underground space : the 4th dimension of metropolises : Proceedings of the World Tunnel Congress Prague, Czech Republic, 5-10 May 2007 /
  Dahkki: AITES-ITA World Tunnel Congress (33rd : 2007 : Prague, Czech Republic), et al.
  Almmustuhtton: (2007)
• Underground : the way to the future /
  Dahkki: World Tunnel Congress (2013 : Geneva, Switzerland), et al.
  Almmustuhtton: (2013)
• Some examples of underground development in Europe/
  Dahkki: O'Reilly, M. P., et al.
  Almmustuhtton: (1974)
• North American tunneling 2006 : proceedings of the North American tunneling conference 2006 ;10-15 June 2006, Chicago, USA /
  Dahkki: Proceedings of the North American Tunneling 2006 Conference (2006 : Chicago, USA), et al.
  Almmustuhtton: (2006)
• North American tunneling 2006 [electronic resource] : proceedings of the North American tunneling conference 2006 ;10-15 June 2006, Chicago, USA /
  Dahkki: Proceedings of the North American Tunneling 2006 Conference (2006 : Chicago, USA), et al.
  Almmustuhtton: (2006)