@article{amaya_popovkin_2012,  title={Malanea revolutifolia (Guettardeae: Rubiaceae), una nueva especie del noreste de Brasil},  volume={63},  ISSN={2175-7860},  url={https://doi.org/10.1590/S2175-78602012000400011},  DOI={10.1590/S2175-78602012000400011},  number={4},  journal={Rodriguésia},  publisher={Instituto de Pesquisas Jardim Botânico do Rio de Janeiro},  author={Amaya, Alix and Popovkin, Alex},  year={2012},  month={Oct},  pages={929–932} }