Citation: Takeda, T.; Takano, M.; Kawamoto, Y.; Kanno, R.; Kamiyama, T.; Kawasaki, S.; Izumi, F. (2000). Metal-semiconductor transition, charge disproportionation, and low-temperature structure of Ca1-x Srx Fe O3 synthesized under high-oxygen pressure. Solid State Sciences, 2, pp. 673-687.