Frode Johan Hansen
- Construction of superstructures in different environments. Presented at: IABSE Symposium: The selection of structural form = Système et forme des structures = System und Form von Tragwerken, London, United Kingdom, 1981. (1981):
- A new kind of hybrid construction. Presented at: Tenth Congress of IABSE = Dixième Congrès de l'AIPC = Zehnter Kongress der IVBH, Tokyo, Japan, 6-11 September 1976. (1976):