1. M. Yamanouchi and M. Koizumi, “Functionally Gradient Materials,” in Proc. First Int. Symp. on Functionally Graded Materials. 1991. Sendai, Japan (Sendai, 1991).
2. M. A. Attia, “On the mechanics of functionally graded nanobeams with the account of surface elasticity,” Int. J. Engineering, 115, 73-101 (2017).
3. A. Selmi, “Exact solution for nonlinear vibration of clamped-clamped functionally graded buckled beam,” Smart Structures and Systems, 26, No. 3, 361-371 (2020).
4. M. Merzoug, M. Bourada, M. Sekkal, A. Ali Chaibdra, C. Belmokhtar, S. Benyoucef, and A. Benachour, “2D and quasi 3D computational models for thermoelastic bending of FG beams on variable elastic foundation: Effect of the micromechanical models,” Geomech. and Eng., 22, No. 4, 361-374 (2020).
5. M. Vinyas, “On frequency response of porous functionally graded magneto-electro-elastic circular and annular plates with different electro-magnetic conditions using HSDT,” Compos. Struct., 240, 112044 (2020).