['The', 'TGA', 'studies', 'were', 'carried', 'out', 'under', 'reducing', 'conditions', '(', '5', '%', 'H2', '/', 'Ar', ')', 'from', 'room', 'temperature', 'to', '900', '°', 'C', ',', 'in', 'order', 'to', 'determine', 'the', 'weight', 'change', 'of', 'the', 'perovskite', 'during', 'the', 'reduction', '.']