Kuzmenko, A. M., Mukhin, A. A., Ivanov, V. Yu., Komandin, G. A., Shuvaev, A., Pimenov, A., Dziom, V., Bezmaternykh, L. N., & Gudim, I. A. (2016). Terahertz spectroscopy of crystal-field transitions in magnetoelectric TmAl3(BO3)4. Physical Review B, 94(174419). https://doi.org/10.1103/physrevb.94.174419