@article{amorim_júnior_ruiz_andrade_2021,  title={Synthesis and characterization of niobium-doped fish scale-derived hydroxyapatite by physical ultrasound interference},  volume={67},  ISSN={0366-6913},  url={https://doi.org/10.1590/0366-69132021673813021},  DOI={10.1590/0366-69132021673813021},  number={381},  journal={Cerâmica},  publisher={Associação Brasileira de Cerâmica},  author={Amorim, M. O. de and Júnior, J. C. C. S. and Ruiz, Y. L. and Andrade, J. C. S.},  year={2021},  month={Jan},  pages={23–27} }