Jassim, K. A..
" Influence of Simultaneous Doping of Tl on the Transition Temperature   Tc and the Lattice Parameters of HgBa2Ca2Cu3O8+ δ Superconductors." <em>Ibn AL- Haitham Journal For Pure and Applied Science</em> [Online], 22.3 (2009): n. pag. Web.  1 Dec. 2019