“Numerical Study of the Stiffness Degradation Caused by Branched Cracks and its Influence on the Natural Frequency Drop” (2018) Romanian Journal of Acoustics and Vibration, 15(1), pp. 53–57. Available at: https://rjav.sra.ro/index.php/rjav/article/view/51 (Accessed: 8 December 2024).