?url_ver=Z39.88-2004&rft_id=10.1007%2F978-981-15-1193-6%E2%82%81%E2%82%80&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Nikbakht%2C+E.&rft.aulast=Nikbakht&rft.aufirst=E.&rft.title=Lecture+Notes+in+Civil+Engineering&rft.date=2020&rft.volume=59&rft.issn=23662557&rft.atitle=Structural+Behaviour+of+Strengthened+High-Performance+Concrete-Filled+Double+Skin+Steel+Tube+Beams&rft.pages=87-93&rft.genre=article