Фреїк, Дмитро Михайлович, et al. “ELECTRICAL PROPERTIES OF THIN FILMS AND NANOSTRUCTURES BASED ON LEAD CHALCOGENIDES”. PRECARPATHIAN BULLETIN OF THE SHEVCHENKO SCIENTIFIC SOCIETY. Number, no. 1(9), Mar. 2019, pp. 127-43, https://pvntsh.nung.edu.ua/index.php/number/article/view/290.