@article{rocha_avila_caetano_molina_sacco_ciuffi_calefi_nassar_2005,  title={Europium incorporated into titanium oxide by the sol-gel method},  volume={8},  ISSN={1516-1439},  url={https://doi.org/10.1590/S1516-14392005000300024},  DOI={10.1590/S1516-14392005000300024},  number={3},  journal={Materials Research},  publisher={ABM, ABC, ABPol},  author={Rocha, Lucas Alonso and Avila, Lilian Rodrigues and Caetano, Bruno Leonardo and Molina, Eduardo Ferreira and Sacco, Hérica Cristina and Ciuffi, Katia Jorge and Calefi, Paulo Sergio and Nassar, Eduardo José},  year={2005},  month={Jul},  pages={361–364} }