Fisseha, L. (2023) “Non-stationary vibrations of mechanical systems with slowly varying natural frequencies during acceleration through resonance ( Approximate analytic solution)”, Zede Journal of Ethiopian Engineers and Architects, 14, pp. 39–44. Available at: http://ejol.aau.edu.et/index.php/ZEDE/article/view/6389 (Accessed: 25November2024).