@article{martins_zieri_2003,  title={Leaf anatomy of rubber-tree clones},  volume={60},  ISSN={0103-9016},  url={https://doi.org/10.1590/S0103-90162003000400015},  DOI={10.1590/S0103-90162003000400015},  number={4},  journal={Scientia Agricola},  publisher={Escola Superior de Agricultura "Luiz de Queiroz"},  author={Martins, Maria Bernadete Gonçalves and Zieri, Rodrigo},  year={2003},  month={Oct},  pages={709–713} }