@article{oliveira_pereira_cairo_2002,  title={Porous Structure Characterization in Titanium Coating for Surgical Implants},  volume={5},  ISSN={1516-1439},  url={https://doi.org/10.1590/S1516-14392002000300009},  DOI={10.1590/S1516-14392002000300009},  number={3},  journal={Materials Research},  publisher={ABM, ABC, ABPol},  author={Oliveira, M.V. and Pereira, L.C. and Cairo, C.A.A.},  year={2002},  month={Jul},  pages={269–273} }