?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Vu%2C+Van+Dung&rft.aulast=Vu&rft.aufirst=Van+Dung&rft.date=15+October+2014&rft.title=Nonlinear+Response+of+Axisymmetric+Shear+Deformable+Sigmoid+FGM+Shallow+Spherical+Shells+Resting+on+Elastic+Foundations+under+External+Pressure&rft.genre=proceeding