P. Tveit
- Visit to the Steinkjer network arch 44 years later. Presented at: ARCH’07 – 5th International Conference on Arch Bridges, Madeira, Portugal, 12-14 September 2007. :
- Building network arches on reinforced ice between piers. Presented at: 12th IABSE Congress, Vancouver, BC, Canada, 3-7 September, 1984. (1984):
- Ideas on downward arched and other underwater concrete tunnels. In: Tunnelling and Underground Space Technology, v. 15, n. 1 (January 2000). (2000):
- Comparison of Steel Weights in Narrow Arch Bridges with Medium Spans (Vergleich der Stahlgewichte von schmalen Bogenbrücken mit mittleren Spannweiten). In: Stahlbau, v. 68, n. 9 (September 1999). (1999):