Bedjilili, Y., Tounsi, A., Berrabah, H.M., Mechab, I., Adda Bedia, E.A., Benaissa, S., Natural frequencies of composite beams with a variable fiber volume fraction including rotary inertia and shear deformation, Applied Mathematics and Mechanics
, 30(6), 2009, 717-726.
 Ghugal, Y.M., Shimpi, R.P., A review of refined shear deformation theories for isotropic and anisotropic laminated beams, Journal of Reinforced Plastics and Composites, 20(3), 2001, 255-272.
 Sayyad, A.S., Ghugal, Y.M., A unified shear deformation theory for the bending of isotropic, functionally graded, laminated and sandwich beams and plates, International Journal of Applied Mechanics
, 9(1), 2017, 1750007.
 Peddieson, J., Buchanan, G.R., Mc Nitt, R.P., Application of nonlocal continuum models to nanotechnology, International Journal of Engineering Science
, 41, 2003, 305–312.
 Ebrahimi, F., Barati, M.R., Electromechanical buckling behavior of smart piezoelectrically actuated higher order size-dependent graded nanoscale beams in thermal environment, International Journal of Smart and Nano Materials
, 7, 2016, 69–90.
 Eringen, A.C., Nonlocal polar elastic continua, International Journal of Engineering Science
, 10(1), 1972, 1-16.
 Eringen, A.C., On differential equations of nonlocal elasticity and solutions of screw dislocation and surface waves, Journal of Applied Physics
, 54(9), 1983, 4703-4710.
 Yang, F.A.C.M., Chong, A.C.M., Lam, D.C., Tong, P., Couple stress based strain gradient theory for elasticity, International Journal of Solids and Structures
, 39(10), 2002, 2731-2743.
 Zemri, A., Houari, M.S.A., Bousahla, A.A., Tounsi, A., A mechanical response of functionally graded nanoscale beam: an assessment of a refined nonlocal shear deformation theory beam theory, Structural Engineering and Mechanics
, 54(4), 2015, 693-710.
 Ebrahimi, F., Barati, M.R., Buckling analysis of nonlocal third-order shear deformable functionally graded piezoelectric nanobeams embedded in elastic medium, Journal of the Brazilian Society of Mechanical Sciences and Engineering
, 39(3), 2017, 937-952.
 Aydogdu, M., A general nonlocal beam theory: its application to nanobeam bending, buckling and vibration, Physica E: Low-dimensional Systems and Nanostructures
, 41, 2009, 1651–1655.
 Rahmani ,O., Jandaghian ,A.A., Buckling analysis of functionally graded nanobeams based on a nonlocal third-order shear deformation theory, Applied Physics A
, 119(3), 2015, 1019–1032.
 Tounsi, A, Semmah, A., Bousahla, A.A., Thermal buckling behavior of nanobeams using an efficient higher-order nonlocal beam theory, Journal of Nanomechanics and Micromechanics
, 3, 2013, 37–42.
 Larbi Chaht, F., Kaci, A., Houari, M.S.A., Tounsi, A., Anwar Bég, O., Mahmoud, S.R., Bending and buckling analyses of functionally graded material (FGM) size-dependent nanoscale beams including the thickness stretching effect, Steel and Composite Structures
, 18(2), 2015, 425-442.
 Pisano, A.A., Sofi, A., Fuschi, P., Finite element solutions for nonhomogeneous nonlocal elastic problems, Mechanics Research Communications
, 36, 2009, 755–761.
 Pisano, A.A., Sofi, A., Fuschi, P., Nonlocal integral elasticity: 2D finite element based solutions, International Journal of Solids and Structures
, 46, 2009, 3836–3849.
 Janghorban, M., Zare, A., Free vibration analysis of functionally graded carbon nanotubes with variable thickness by differential quadrature method, Physica E: Low-dimensional Systems and Nanostructures
, 43, 2011, 1602–1604.
 Eltaher, M.A., Emam, S.A., Mahmoud, F.F., Free vibration analysis of functionally graded size-dependent nanobeams, Applied Mathematics and Computation
, 218, 2012, 7406-7420.
 Lim, C.W., Zhang, G., Reddy, J.N., A higher-order nonlocal elasticity and strain gradient theory and its applications in wave propagation, Journal of the Mechanics and Physics of Solids
, 78, 2015, 298–313.
 Ebrahimi, F, Barati, M.R, Dabbagh, A., A nonlocal strain gradient theory for wave propagation analysis in temperature-dependent inhomogeneous nanoplates, International Journal of Engineering Science
, 107, 2016, 169–182.
 Bouafia, K., Kaci, A., Houari, M.S.A., Benzair, A., Tounsi, A., A nonlocal quasi-3D theory for bending and free flexural vibration behaviors of functionally graded nanobeams, Smart Structures and Systems
, 19(2), 2017, 115-126.
 Bellifa, H., Benrahou, K.H., Bousahla, A.A., Tounsi, A., Mahmoud, S.R., A nonlocal zeroth-order shear deformation theory for nonlinear postbuckling of nanobeams, Structural Engineering and Mechanics
, 62(6), 2017, 695-702.