Raxmonov Sh.T. and Ikhtiyarova G.A. (2023) “THE STUDY OF THE STRUCTURE OF ATOMS OF ELEMENTS OF LARGE AND SMALL PERIODS BY A MODERN METHOD”, Research Focus International Scientific Journal, 2(3), pp. 118–122. Available at: https://refocus.uz/index.php/1/article/view/61 (Accessed: 5 June 2025).