F. S. MOHAMMADI, Z. RAHIMI, W. SUMELKA, and X.-J. YANG, “Investigation of Free Vibration and Buckling of Timoshenko Nano-beam Based on a General Form of Eringen Theory Using Conformable Fractional Derivative and Galerkin Method”, Eng. Trans., vol. 67, no. 3, pp. 347–367, Apr. 2019, doi: 10.24423/EngTrans.1001.20190426.