Friswell, M., Trabelssi, M., & El-Borgi, S. (2020). A high-order FEM formulation for free and forced vibration analysis of a nonlocal nonlinear graded Timoshenko nanobeam based on the weak form quadrature element method. Archive of Applied Mechanics, 90(10), pp. 2133-2156. doi:10.1007/s00419-020-01713-3

Friswell, Michael, M. Trabelssi, and S. El-Borgi. "A High-order FEM Formulation for Free and Forced Vibration Analysis of a Nonlocal Nonlinear Graded Timoshenko Nanobeam Based On the Weak Form Quadrature Element Method." Archive of Applied Mechanics 90, no. 10 (2020): 2133-2156.

Friswell, Michael, M. Trabelssi, and S. El-Borgi. "A High-order FEM Formulation for Free and Forced Vibration Analysis of a Nonlocal Nonlinear Graded Timoshenko Nanobeam Based On the Weak Form Quadrature Element Method." Archive of Applied Mechanics 90.10 (2020): 2133-2156.