Magraso, A.; Frontera, C.; Gunnæs, A.E.; Tarancon, A.; Marrero-Lopez, D.; Norby, T.; Haugsrud, R. "Structure, chemical stability and mixed proton-electron conductivity in BaZr0.9-xPrxGd0.1O3-δ" Journal of Power Sources 196, 22, pp. 9141 - 9147. 2011 DOI: 10.1016/j.jpowsour.2011.06.076