Superconducting Properties of the (Bi0.8Pb0.2)2(Sr0.9Ba0.1)2 Ca2Cu3-x Nix O10+? System. Baghdad Sci.J [Internet]. 2011 Jun. 12 [cited 2024 May 8];8(2):607-12. Available from: https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/2554