Kakhniashvili G, Nakhutsrishvili I. Electronic Quality Factor and Universal Electrical Conductivity of Thermoelectric 〖Bi〗_2 〖Sr〗_(2-x) 〖[Sr(BO_2 )_2 ]_x Co〗_(1.8) O_y. GS [Internet]. 2022 Aug. 6 [cited 2024 Oct. 9];4(4):181-7. Available from: https://journals.4science.ge/index.php/GS/article/view/1126