@article{blass_1998,  title={
       },  volume={8},  ISSN={0104-1428},  url={https://doi.org/10.1590/S0104-14281998000100004},  DOI={10.1590/S0104-14281998000100004},  number={1},  journal={Polímeros},  publisher={Associação Brasileira de Polímeros},  author={Blass, Arno},  year={1998},  month={Jan},  pages={18–19} }