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 የኢትዮጵያ መሐንዲሶችና አርክቴክቶች መጽሔት, 14, 39–44. Retrieved from https://ejol.aau.edu.et/index.php/ZEDE/article/view/6389