“Exact Vibration Analysis of Beams With Arbitrary Intermediate Elastic Supports, Concentrated Masses and Non-Classical Boundary Conditions Under an Axial Force Using Shape Function Method”. Romanian Journal of Acoustics and Vibration 17, no. 1 (November 2, 2020): 57–76. Accessed October 12, 2026. https://rjav.sra.ro/index.php/rjav/article/view/176.