Ерстенюк, Г. М. (2019) “MICROELEMENTS: HISTORY AND CONTEMPORARY”, PRECARPATHIAN BULLETIN OF THE SHEVCHENKO SCIENTIFIC SOCIETY Pulse, (4(4), pp. 19–24. Available at: https://pvntsh.nung.edu.ua/index.php/pulse/article/view/925 (Accessed: 7 December 2025).