@article{rataj_1977,  title={Uma nova Cabomba do rio Negro, Amazonas, Brasil},  volume={7},  ISSN={0044-5967},  url={https://doi.org/10.1590/1809-43921977071143},  DOI={10.1590/1809-43921977071143},  number={1},  journal={Acta Amazonica},  publisher={Instituto Nacional de Pesquisas da Amazônia},  author={Rataj, Karel},  year={1977},  month={Mar},  pages={143–143} }