G. Cowper, The shear coefficient in Timoshenko’s beam theory, (1966).
 J.R. Hutchinson, On Timoshenko beams of rectangular cross-section, J. Appl. Mech., 71(3) (2004) 359-367.
 D. Zhou, Free vibration of multi-span Timoshenko beams using static Timoshenko beam functions, Journal of Sound and Vibration, 241(4) (2001) 725-734.
 X.-F. Li, Z.-W. Yu, H. Zhang, Free vibration of shear beams with finite rotational inertia, Journal of Constructional Steel Research, 67(10) (2011) 1677-1683.
 S.J. Lee, K.S. Park, Vibrations of Timoshenko beams with isogeometric approach, Applied Mathematical Modelling, 37(22) (2013) 9174-9190.
 H. Arvin, Free vibration analysis of micro rotating beams based on the strain gradient theory using the differential transform method: Timoshenko versus Euler-Bernoulli beam models, European Journal of Mechanics-A/Solids, 65 (2017) 336-348.
 T. Huang, The effect of rotatory inertia and of shear deformation on the frequency and normal mode equations of uniform beams with simple end conditions, (1961).
 Y.-S. HE, Free Vibration analysis of continuous Timoshenko beams by dynamic stiffness method, Advanced topics in vibrations, (1987) 43-48.
 R. Davis, R. Henshell, G. Warburton, A Timoshenko beam element, Journal of Sound and Vibration, 22(4) (1972) 475-487.
 K. Chan, X. Wang, Free vibration of a Timoshenko beam partially loaded with distributed mass, Journal of Sound and Vibration, 206(3) (1997) 353-369.
 J. Lee, W. Schultz, Eigenvalue analysis of Timoshenko beams and axisymmetric Mindlin plates by the pseudospectral method, Journal of Sound and Vibration, 269(3-5) (2004) 609-621.
 A. Ferreira, G. Fasshauer, Computation of natural frequencies of shear deformable beams and plates by an RBF-pseudospectral method, Computer Methods in Applied Mechanics and Engineering, 196(1-3) (2006) 134-146.
 L.B. da Veiga, C. Lovadina, A. Reali, Avoiding shear locking for the Timoshenko beam problem via isogeometric collocation methods, Computer Methods in Applied Mechanics and Engineering, 241 (2012) 38-51.
 K. Torabi, A.J. Jazi, E. Zafari, Exact closed form solution for the analysis of the transverse vibration modes of a Timoshenko beam with multiple concentrated masses, Applied Mathematics and Computation, 238 (2014) 342-357.
 B. Zhang, Y. He, D. Liu, Z. Gan, L. Shen, Non-classical Timoshenko beam element based on the strain gradient elasticity theory, Finite elements in analysis and design, 79 (2014) 22-39.
 Y.S. Hsu, Enriched finite element methods for Timoshenko beam free vibration analysis, Applied Mathematical Modelling, 40(15-16) (2016) 7012-7033.
 J. Reddy, On locking-free shear deformable beam finite elements, Computer methods in applied mechanics and engineering, 149(1-4) (1997) 113-132.
 T. Kocatürk, M. Şimşek, Free vibration analysis of Timoshenko beams under various boundary conditions, Sigma, 1 (2005) 30-44.
 M. Şi̇mşek, T. Kocatürk, Free vibration analysis of beams by using a third-order shear deformation theory, Sadhana, 32(3) (2007) 167-179.
 V. Kahya, M. Turan, Finite element model for vibration and buckling of functionally graded beams based on the first-order shear deformation theory, Composites Part B: Engineering, 109 (2017) 108-115.
 T.-K. Nguyen, T.T.-P. Nguyen, T.P. Vo, H.-T. Thai, Vibration and buckling analysis of functionally graded sandwich beams by a new higher-order shear deformation theory, Composites Part B: Engineering, 76 (2015) 273-285.
 T.P. Vo, H.-T. Thai, T.-K. Nguyen, A. Maheri, J. Lee, Finite element model for vibration and buckling of functionally graded sandwich beams based on a refined shear deformation theory, Engineering Structures, 64 (2014) 12-22.
 T.P. Vo, H.-T. Thai, T.-K. Nguyen, F. Inam, J. Lee, A quasi-3D theory for vibration and buckling of functionally graded sandwich beams, Composite Structures, 119 (2015) 1-12.
 S.-R. Li, R.C. Batra, Relations between buckling loads of functionally graded Timoshenko and homogeneous Euler–Bernoulli beams, Composite Structures, 95 (2013) 5-9.
 A. Özütok, E. Madenci, Static analysis of laminated composite beams based on higher-order shear deformation theory by using mixed-type finite element method, International Journal of Mechanical Sciences, 130 (2017) 234-243.
 T.P. Vo, H.-T. Thai, Static behavior of composite beams using various refined shear deformation theories, Composite Structures, 94(8) (2012) 2513-2522.
 W. Bickford, B. WB, A consistent higher order beam theory, (1982).
 P. Heyliger, J. Reddy, A higher order beam finite element for bending and vibration problems, Journal of sound and vibration, 126(2) (1988) 309-326.