@article{david_meira_david_guedes_2004,  title={Triterpenos e ferulatos de alquila de Maprounea guianensis},  volume={27},  ISSN={0100-4042},  url={https://doi.org/10.1590/S0100-40422004000100013},  DOI={10.1590/S0100-40422004000100013},  number={1},  journal={Química Nova},  publisher={Sociedade Brasileira de Química},  author={David, Juceni P. and Meira, Marilena and David, Jorge M. and Guedes, Maria Lenise da S.},  year={2004},  month={Jan},  pages={62–65} }