@article{baumhardt neto_1999,  title={Plataforma de polímeros no sul do Brasil},  volume={9},  ISSN={0104-1428},  url={https://doi.org/10.1590/S0104-14281999000200007},  DOI={10.1590/S0104-14281999000200007},  number={2},  journal={Polímeros},  publisher={Associação Brasileira de Polímeros},  author={Baumhardt Neto, Ricardo},  year={1999},  month={Apr},  pages={14–15} }