@article{freire_1990,  title={Levantamento floristico do Parque Estadual das Dunas do Natal},  volume={4},  ISSN={0102-3306},  url={https://doi.org/10.1590/S0102-33061990000300006},  DOI={10.1590/S0102-33061990000300006},  number={2},  journal={Acta Botanica Brasilica},  publisher={Sociedade Botânica do Brasil},  author={Freire, Maria Socorro Borges},  year={1990},  pages={41–59} }