Бородачов, М.М., and Т.В. Доник. “Determining the Frequency of Free Vibrations of Turbine Blades by Finite Element Method”. Proceedings of National Aviation University 33, no. 3-4 (March 1, 2007): 68–72. Accessed January 5, 2025. https://jrnl.nau.edu.ua/index.php/visnik/article/view/1500.