SEARCH Articles Figures Tables Conductivity electric, perovskite-type oxides Conductivity oxides Mechanisms of Proton Conduction in Perovskite-Type Oxides Oxide Ion Conductivity in Perovskite Oxides Oxide Ion Conductivity in the Perovskite-Related Oxides Oxide perovskites Perovskite oxide Perovskite oxides proton conductivity Perovskites conductivity Proton Conduction in Cerium- and Zirconium-Based Perovskite Oxides Proton Conductivity in Perovskite Oxides