Delft

1. Mortier, Hans / Delfgaauw, Steven (2013): Tunneling underneath historical buildings of Delft. Vorgetragen bei: IABSE Conference: Assessment, Upgrading and Refurbishment of Infrastructures, Rotterdam, The Netherlands, 6-8 May 2013, S. 188-189.

   https://doi.org/10.2749/222137813806482968