@article{paula_1974,  title={Anatomia de madeira. Guttiferae},  volume={4},  ISSN={0044-5967},  url={https://doi.org/10.1590/1809-43921974041027},  DOI={10.1590/1809-43921974041027},  number={1},  journal={Acta Amazonica},  publisher={Instituto Nacional de Pesquisas da Amazônia},  author={Paula, José Elias de},  year={1974},  month={Apr},  pages={27–64} }