Kovtun Anatoliі, Tabunenko Vоlоdimir, and Alexander Parhomchuk. “THEOREM ABOUT THE CHANGE OF RESONANCE FREQUENCIES OF VIBRATIONS OF MECHANICAL SYSTEMS WITH FRICTION”. Advanced Information Systems 2, no. 1 (May 27, 2018): 87–90. Accessed July 5, 2024. http://ais.khpi.edu.ua/article/view/2522-9052.2018.1.16.