@article{rodrigues_pascual_zubov_1999,  title={Influence of strong anharmonicity on the dynamical properties of a crystal with BCC lattice},  volume={29},  ISSN={0103-9733},  url={https://doi.org/10.1590/S0103-97331999000300009},  DOI={10.1590/S0103-97331999000300009},  number={3},  journal={Brazilian Journal of Physics},  publisher={Sociedade Brasileira de Física},  author={Rodrigues, C. G. and Pascual, M. F. and Zubov, V. I.},  year={1999},  month={Sep},  pages={450–456} }