Comparing the physical properties of Pr/Gd and Pr/Ce substitutions in Ru(Gd1.5Ce0.5)Sr2Cu2O10-δ A. Khajehnezhad, N. Nikseresht, H. Hadipour and M. Akhavan Eur. Phys. J. B, 63 4 (2008) 461-467 Published online: 10 July 2008 DOI: 10.1140/epjb/e2008-00257-y