Li, Xiaofeng, Xiaoxu Dong, and Lihua Zhang. “FOURIER TRANSFORM TO SOLVE INFINITE STRING FREE VIBRATION OF APPLICATION”. Journal of Advance Research in Mathematics and Statistics 3, no. 6 (June 30, 2016): 08–12. Accessed November 5, 2026. https://www.jarm-s.com/index.php/MS/article/view/8.