Shkurupiy, Oleksandr, Pavlo Mytrofanov, and Vladislav Masiuk. “Calculation of The Stability of the Form of Equilibrium of Discrete Systems”. International Journal of Engineering and Technology 7, no. 3.2 (June 20, 2018): 41–407. Accessed August 17, 2025. https://mail.sciencepubco.com/index.php/IJET/article/view/14561.