Poul Hededal
- Repair of the Limfjord Tunnel, Denmark. Vorgetragen bei: IABSE Colloquium: Tunnel structures, Stockholm, Sweden, June 1998. (1998):
- Post-tensioning of the Limfjord Tunnel, Denmark. Vorgetragen bei: IABSE Symposium: Extending the Lifespan of Structures, San Francisco, CA, USA, August 1995. (1995):