SpringerLink (Online service), Petzek, E., & Băncilă, R. (2015). Economical Bridge Solutions based on innovative composite dowels and integrated abutments: Ecobridge. Springer Fachmedien Wiesbaden : Imprint: Springer Vieweg.
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Edward Petzek, και Radu Băncilă. Economical Bridge Solutions Based on Innovative Composite Dowels and Integrated Abutments: Ecobridge. Wiesbaden: Springer Fachmedien Wiesbaden : Imprint: Springer Vieweg, 2015.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. Economical Bridge Solutions Based on Innovative Composite Dowels and Integrated Abutments: Ecobridge. Springer Fachmedien Wiesbaden : Imprint: Springer Vieweg, 2015.
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