Bi-Fe-O-Sm, Conductor, Semiconductor, Electric polarization

• P1319423-2
• P1319423-3
• P1821475-4
• P1821476-2
• P1912779-12
• P1319423-12
• P1821475-10
• P1821476-5
• P1912779-22
• P1912779-23