Vadai, Zsolt, et al. “Investigation of the Eigenfrequency of the Bending Vibration of the Beam Clamped at Both Ends Around the Principle Directions of Inertia Based on a Single-Degree Freedom Model and a Finite Element Method Analysis”. International Journal of Engineering and Management Sciences, vol. 6, no. 3, Nov. 2021, pp. 69-79, https://doi.org/10.21791/IJEMS.2021.3.6.