T.S.Kamilov, M.M. Shoabdurachimova, I.M.Kokanbayev, A.J.Husanov and K.K.Kurbonaliev 2022. Temperature and dependence of photoconductivity and structures Mn4 Si 7-Si Mn-Mn4 And7. Texas Journal of Engineering and Technology. 15, (Dec. 2022), 127–129.