- Laboratório Nacional de Engenharia Civil (Portugal) (3)
- Arantes e Oliveira, Edoardo R. de, 1907- (1)
- Grupo Portugues de Engenharia das Estruturas (1)
- Instituto Superior Técnico (Lisbon, Portugal) (1)
- International Association for Bridge and Structural Engineering (1)
- International Conference on Finite Elements in Water Resources (1)
- NATO Advanced Study Institute on Finite Element Methods in Continuum Mechanics (1)
- North Atlantic Treaty Organization. Scientific Affairs Division (1)
- Oden, J. Tinsley (John Tinsley), 1936- (1)
- Portuguese Group of IABSE (1)
- Sá da Costa, A. (1)