1. “Influence of the microstructure on the high-temperature transport properties of GdBaCo2O5.5+ epitaxial films”. Burriel M, Casa-Cabanas M, Zapata J, Tan H, Verbeeck J, Solis C, Roqueta J, Skinner SJ, Kilner JA, Van Tendeloo G, Santiso J, Chemistry of materials 22, 5512 (2010).   http://doi.org/10.1021/cm101423z