?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Pham%2C+Minh+Phuc&rft.aulast=Pham&rft.aufirst=Minh+Phuc&rft.date=2021&rft.issn=0263-8231&rft.atitle=Free+vibration+of+cracked+FGM+plates+with+variable+thickness+resting+on+elastic+foundations&rft.title=Thin+Walled+Structures&rft.genre=article