Dag Ivar Ytreberg
- (2009): The Extensive Cladding of Drammen Bridge, Norway. Vorgetragen bei: IABSE Symposium: Sustainable Infrastructure - Environment Friendly, Safe and Resource Efficient, Bangkok, Thailand, 9-11 September 2009.
- Technical Challenges in Recent Winning Projects in Architect Footbrigdes Competitions in Norway. Vorgetragen bei: Footbridge 2008 - Footbridges for Urban Renewal, Third International Conference on Footbridges, 2-4 July 2008, Porto, Portugal. (2008):
- (2010): New Fredrikstad Bascule Bridge, Norway. Vorgetragen bei: IABSE Symposium: Large Structures and Infrastructures for Environmentally Constrained and Urbanised Areas, Venice, Italy, 22-24 September 2010.