Lila, D.M. “On the Method of Perturbations in the Problem of Elastoplastic Instability of a Rotating Disk”. Reports of the National Academy of Sciences of Ukraine, no. 9 (September 17, 2024): 48–54. Accessed May 4, 2026. https://nasu-periodicals.org.ua/index.php/dp/article/view/7737.