“PROPERTIES OF NONLINEAR OSCILLATIONS OF DISSIPATIVE MECHANICAL SYSTEMS WITH A LIMITED NUMBER OF DEGREES OF FREEDOM”, Amer. Jour. of Rese. in Human. and Soci. Scie., vol. 43, pp. 4–6, Dec. 2025, Accessed: Feb. 02, 2026. [Online]. Available: https://americanjournal.org/index.php/ajrhss/article/view/3200