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G.A. Zvyagina, K.R. Zhekov, I.V. Bilych, A.A. Zvyagin, I.A. Gudim, and V.L. Temerov, Magnetic phase transitions in the NdFe3(BO3)4 multiferroic, Low Temp. Phys. 37, (2011) [Fiz. Nizk. Temp. 37, 1269-1281, (2011)] DOI: https://doi.org/10.1063/1.3674182.