Kubicek, M., Limbeck, A., Frömling, T., Hutter, H., & Fleig, J. (2011). Surface Cation Segregation and its Effect on the Oxygen Reduction Reaction on Mixed Conducting Electrodes Investigated by ToF-SIMS and ICP-OES. ECS Transactions, 35(1), 1975–1983. https://doi.org/10.1149/1.3570187