M. Mustafa, Bassam. “The Effect of Substitution on the Critical Temperature in the Superconducting Compound Y1-X-Y CayPrxBa2Cu3O7”. Rafidain Journal of Science 19, no. 1 (February 1, 2008): 77–87. Accessed September 29, 2025. https://jwups.uomosul.edu.iq/index.php/rsci/article/view/47515.