@article{oliveira jr._lima_milito_martins_2005,  title={Development and applications of three-dimensional gamma ray tomography system using ray casting volume rendering techniques},  volume={35},  ISSN={0103-9733},  url={https://doi.org/10.1590/S0103-97332005000500018},  DOI={10.1590/S0103-97332005000500018},  number={3b},  journal={Brazilian Journal of Physics},  publisher={Sociedade Brasileira de Física},  author={Oliveira Jr., J. M. de and Lima, F. Z. C. de and Milito, J. A. de and Martins, A. C. G.},  year={2005},  month={Sep},  pages={789–792} }