?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Nguyen%2C+Viet+Khoa&rft.aulast=Nguyen&rft.aufirst=Viet+Khoa&rft.volume=333&rft.date=2015&rft.atitle=Mode+shape+analysis+of+a+cracked+beam+and+its+application+for+crack+detection&rft.title=Journal+of+Sound+and+Vibration&rft.pages=848-872&rft.genre=article