@article{araújo_cardoso_2006,  title={Storage in cerrado soil and germination of Psychotria vellosiana (Rubiaceae) seeds},  volume={66},  ISSN={1519-6984},  url={https://doi.org/10.1590/S1519-69842006000400015},  DOI={10.1590/S1519-69842006000400015},  number={2b},  journal={Brazilian Journal of Biology},  publisher={Instituto Internacional de Ecologia},  author={Araújo, C. G. and Cardoso, V. J. M.},  year={2006},  month={May},  pages={709–717} }