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  Chang, H.; Lee, H.B.; Song, Y.-S.; Chung, J.-H.; Kim, S.A.; Oh, I.H.; Reehuis, M.; Schefer, J.: Al doping effect on magnetic phase transitions of magnetoelectric hexaferrite Ba_0.7Sr_1.3Zn₂(Fe_1-xAl_x)₁₂O₂₂. Physical Review B 85 (2012), p. 064402/1-9

10.1103/physRevB.85.064402
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