Porto

1. Dutton, Hugh (2008): Architecture of footbridges. 4 projects by Hugh Dutton Associates. Vorgetragen bei: Footbridge 2008 - Footbridges for Urban Renewal, Third International Conference on Footbridges, 2-4 July 2008, Porto, Portugal, S. 127.
2. Rodrigues, Fernanda / Matos, Raquel / Alves, Ana / Ribeirinho, Paulo / Rodrigues, Hugo (2018): Building life cycle applied to refurbishment of a traditional building from Oporto, Portugal. In: Journal of Building Engineering, v. 17 (Mai 2018), S. 84-95.

   https://doi.org/10.1016/j.jobe.2018.01.010

3. Bleuzen, Y. / Monath, F. / Quaresma, M. / Joao, M. / Brandao, L. (2005): Creusement du tunnel urbain n°1 de Porto: l'apport de l'amorçage par détonateurs électroniques DAVEYTRONIC. Vorgetragen bei: AFTES - Journées techniques, Chambéry, 2005, S. 395-400.
4. Fonseca, João / Stankiewicz, Bogdan / Kowalczyk, Ryszard (2008): Design of a Footbridge in Porto with Nonlinear Lateral Buckling Analysis. Vorgetragen bei: Footbridge 2008 - Footbridges for Urban Renewal, Third International Conference on Footbridges, 2-4 July 2008, Porto, Portugal, S. 241-242.
5. Adão da Fonseca, António (2008): Footbridges Over the River Douro at Porto / Gaia. Vorgetragen bei: Footbridge 2008 - Footbridges for Urban Renewal, Third International Conference on Footbridges, 2-4 July 2008, Porto, Portugal, S. 171-172.