Effect of repeated annealing on the synthetic and electrical properties of Bi2-(x+y)PbxAgy Sr2Ca2Cu3O10+δ electrically superconductor. Tikrit J. Pure Sci. [Internet]. 2019 Aug. 4 [cited 2026 Nov. 8];24(4):57-61. Available from: https://www.tjpsj.org/index.php/tjps/article/view/400