Guskos N, Lyvkodimos V, Londos CA, Kondos A, Paraskevas SM, Koufoudakis A, Mitros C, Gamari-Seale H, Niarchos D, Kruk I. XRD EPR studies of ceramics Pr0.5Re0.5Ba2Cu3O7-? in the orthorhombic and tetragonal phase. Journal of Superconductivity [Internet]. 1992;5:457-461.