@article{cruz_carvalho_queiroz_2007,  title={Scarification with sulphuric acid of Schizolobium amazonicum Huber ex Ducke seeds - FABACEAE},  volume={64},  ISSN={0103-9016},  url={https://doi.org/10.1590/S0103-90162007000300017},  DOI={10.1590/S0103-90162007000300017},  number={3},  journal={Scientia Agricola},  publisher={Escola Superior de Agricultura "Luiz de Queiroz"},  author={Cruz, Eniel David and Carvalho, José Edmar Urano de and Queiroz, Rafaela Josemara Barbosa},  year={2007},  month={May},  pages={308–313} }