Saidimov Ya. A., and Umarov F. B. “DOPING A SILICON SINGLE CRYSTAL WITH THULIUM BY THE DIFFUSION METHOD”. Web of Scientist: International Scientific Research Journal, vol. 5, no. 4, Apr. 2024, pp. 147-51, https://wos.academiascience.org/index.php/wos/article/view/4818.