Liu, P., Wang, X., Cheng, Z., Du, Y. & Kimura, H. (2011). Structural, dielectric, antiferromagnetic, and thermal properties of the frustrated hexagonal Ho1-xErxMnO3 manganites. Physical Review B: Condensed Matter and Materials Physics, 83 (14), 1-8.
Liu, P., Wang, X., Cheng, Z., Du, Y. & Kimura, H. (2011). Structural, dielectric, antiferromagnetic, and thermal properties of the frustrated hexagonal Ho1-xErxMnO3 manganites. Physical Review B: Condensed Matter and Materials Physics, 83 (14), 1-8.