@article{roberto_pereira_campos_2003,  title={Analysis of bioactive glasses obtained by sol-gel processing for radioactive implants},  volume={6},  ISSN={1516-1439},  url={https://doi.org/10.1590/S1516-14392003000200003},  DOI={10.1590/S1516-14392003000200003},  number={2},  journal={Materials Research},  publisher={ABM, ABC, ABPol},  author={Roberto, Wanderley dos Santos and Pereira, Marivalda Magalhães and Campos, Tarcísio Passos Ribeiro de},  year={2003},  month={Apr},  pages={123–127} }