@article{berg_1978,  title={Espécies de Cecropia da Amazônia Brasileira <sup>(</sup><sup>)</sup>},  volume={8},  ISSN={0044-5967},  url={https://doi.org/10.1590/1809-43921978082149},  DOI={10.1590/1809-43921978082149},  number={2},  journal={Acta Amazonica},  publisher={Instituto Nacional de Pesquisas da Amazônia},  author={Berg, C. C.},  year={1978},  month={Jun},  pages={149–182} }