T. O. Olsen
- (2020): The Submerged Floating Tube Bridge: History of a new Structure. Presented at: IABSE Symposium: Synergy of Culture and Civil Engineering – History and Challenges, Wrocław, Poland, 7-9 October 2020.
- Underwater concrete bridge (Norway). In: IABSE Structures, v. 10 (August 1986). (1986):