Assadi A, Farshi B (2011) Size-dependent longitudinal and transverse wave propagation in embedded nanotubes with consideration of surface effects. Acta Mech 222(1): 27-39.
 Hosseini-Hashemi S, Fakher M, Nazemnezhad R (2017) Longitudinal vibrations of aluminum nanobeams by applying elastic moduli of bulk and surface: molecular dynamics simulation and continuum model. Mater Res Express 4(8): 085036.
 Nazemnezhad R, Mahoori R, Samadzadeh A (2019) Surface energy effect on nonlinear free axial vibration and internal resonances of nanoscale rods. Eur J Mech A Solids 77: 103784.
 Nazemnezhad R, Shokrollahi H (2019) Free axial vibration analysis of functionally graded nanorods using surface elasticity theory. Modares Mech Eng 18(9): 131-141.
 Nazemnezhad R, Shokrollahi H (2020) Free axial vibration of cracked axially functionally graded nanoscale rods incorporating surface effect. Steel Compos Struct 35(3): 449-462.
 Karliؤچiؤ‡ DZ, Ayed S, Flaieh E (2019) Nonlocal axial vibration of the multiple Bishop nanorod system. Math Mech Solids 24(6): 1668-1691.
 Babaei A (2019) Longitudinal vibration responses of axially functionally graded optimized MEMS gyroscope using Rayleighâ€“Ritz method, determination of discernible patterns and chaotic regimes. SN App Sci 1(8): 831.
 Yayli Mأ– (2018) Free longitudinal vibration of a nanorod with elastic spring boundary conditions made of functionally graded material. Micro Nano Lett 13(7): 1031-1035.
 Nazemnezhad R, Kamali K (2018) Free axial vibration analysis of axially functionally graded thick nanorods using nonlocal Bishop's theory. Steel Compos Struct 28(6): 749-758.
 Aydogdu M, Arda M, Filiz S (2018) Vibration of axially functionally graded nano rods and beams with a variable nonlocal parameter. Adv nano res 6(3): 257.
 Akgأ¶z B, Civalek أ– (2013) Longitudinal vibration analysis of strain gradient bars made of functionally graded materials (FGM). Compos Part B-Eng 55: 263-268.
 إimإںek M (2012) Nonlocal effects in the free longitudinal vibration of axially functionally graded tapered nanorods. Comp Mater Sci 61: 257-265.
 Rao SS. Vibration of continuous systems: Wiley Online Library, 2007.
 Yayli Mأ– (2020) Axial vibration analysis of a Rayleigh nanorod with deformable boundaries. Microsyst Technol: 26:2661-2671.
 Civalek أ– (2004) Application of differential quadrature (DQ) and harmonic differential quadrature (HDQ) for buckling analysis of thin isotropic plates and elastic columns. Eng Struct 26(2): 171-186.