@article{sandri_andriolo_witter_dal ross_2003,  title={Effect of shading on tomato plants grow under greenhouse},  volume={21},  ISSN={0102-0536},  url={https://doi.org/10.1590/S0102-05362003000400013},  DOI={10.1590/S0102-05362003000400013},  number={4},  journal={Horticultura Brasileira},  publisher={Associação Brasileira de Horticultura},  author={Sandri, Miguel Angelo and Andriolo, Jerônimo Luiz and Witter, Marcio and Dal Ross, Tiago},  year={2003},  month={Oct},  pages={642–645} }