@article{trindade_silva_pires_castro_2021,  title={Evidence of ytterbium doping in Yb<sub>x</sub>Zn<sub>1-x</sub>O nanoparticles synthesized by polymer precursor method},  volume={67},  ISSN={0366-6913},  url={https://doi.org/10.1590/0366-69132021673833109},  DOI={10.1590/0366-69132021673833109},  number={383},  journal={Cerâmica},  publisher={Associação Brasileira de Cerâmica},  author={Trindade, M. S. L. and Silva, T. S. and Pires, W. L. R. and Castro, T. J.},  year={2021},  month={Jul},  pages={327–332} }