@article{kaplan_1991,  title={Potential sources of biodynamically active natural products in Brazil},  volume={86},  ISSN={0074-0276},  url={https://doi.org/10.1590/S0074-02761991000600004},  DOI={10.1590/S0074-02761991000600004},  journal={Memórias do Instituto Oswaldo Cruz},  publisher={Instituto Oswaldo Cruz, Ministério da Saúde},  author={Kaplan, Maria Auxiliadora C.},  year={1991},  pages={5–8} }