Chiabrera F. Garbayo I. Pla D. Burriel M. Wilhelm F. Rogalev A. Núñez M. Morata A. Tarancón A. "Unraveling bulk and grain boundary electrical properties in La 0.8 Sr 0.2 Mn 1-y O 3± δ thin films" APL Materials 7, 1, pp. - 2019 DOI: 10.1063/1.5054576