Sadygov , F. and Mamedova , N. 2020. PHYSICAL AND CHEMICAL STUDY OF THE BI2Te3-Ho2Te3 SYSTEM. EurasianUnionScientists. 3, 11(80) (Dec. 2020), 57-62. DOI:https://doi.org/10.31618/ESU.2413-9335.2020.3.80.1110.