@article{ribeiro_machado_2007,  title={Some aspects of citrus ecophysiology in subtropical climates: re-visiting photosynthesis under natural conditions},  volume={19},  ISSN={1677-0420},  url={https://doi.org/10.1590/S1677-04202007000400009},  DOI={10.1590/S1677-04202007000400009},  number={4},  journal={Brazilian Journal of Plant Physiology},  publisher={Brazilian Journal of Plant Physiology},  author={Ribeiro, Rafael V. and Machado, Eduardo C.},  year={2007},  month={Oct},  pages={393–411} }