V. Dyakonov, V. Varyukhin, A. Zarzycki, K. Dyakonov, W. Bażela, Z. Kravchenko, A. Szewczyk, E. Zubov, R. Szymczak, A. Szytu╕a, and H. Szymczak, Phase transitions in TbMnO₃ manganites, Low Temp. Phys. 38, (2012) [Fiz. Nizk. Temp. 38, 273-277, (2012)] DOI: https://doi.org/10.1063/1.3691530.