@article{gonçalves_santos júnior_silva_arruda_bonates_fernandes_2006,  title={Physiological and anatomical characteristics of leaves of two clones of guarana},  volume={41},  ISSN={0100-204X},  url={https://doi.org/10.1590/S0100-204X2006000300004},  DOI={10.1590/S0100-204X2006000300004},  number={3},  journal={Pesquisa Agropecuária Brasileira},  publisher={Embrapa Secretaria de Pesquisa e Desenvolvimento; Pesquisa Agropecuária Brasileira},  author={Gonçalves, José Francisco de Carvalho and Santos Júnior, Ulysses Moreira dos and Silva, José Ferreira da and Arruda, Murilo Rodrigues de and Bonates, Luiz Carlos de Matos and Fernandes, Andreia Varmes},  year={2006},  month={Mar},  pages={393–398} }