Chris Hakkaart
- TUST special issue – HSL tunnels Oude Maas and Dordtsche Kil. In: Tunnelling and Underground Space Technology, v. 123 (Mai 2022). (2022):
- Chapter 7 transportation. In: Tunnelling and Underground Space Technology, v. 12, n. 2 (April 1997). (1997):
- Air pressure reducing shafts on immersed tunnels. Vorgetragen bei: IABSE Symposium: Structures for High-Speed Railway Transportation, Antwerp, Belgium, 27-29 August 2003. (2003):