Insights on the electrochemical behavior of BZY and BZCY proton conductors densified with a low percentage of Ni or Cu - Rocha, Beatriz Aline Riga; Paganin, Valdecir Antonio; Lo Faro, Massimiliano; Mantilla, Sebastian Vecino; Hafsi, Zahreddine; Oliveira, Fabiana Matos de; Varela, Hamilton; Ticianelli, Edson Antonio; Perez, Joelma (Electrochimica Acta, 2025)