@article{souza_campos_2012,  title={Evaluation of turbidity measuring instruments using statistical process control},  volume={36},  ISSN={1413-7054},  url={https://doi.org/10.1590/S1413-70542012000400006},  DOI={10.1590/S1413-70542012000400006},  number={4},  journal={Ciência e Agrotecnologia},  publisher={Editora da Universidade Federal de Lavras},  author={Souza, Lucas de Paula Ferreira and Campos, Cláudio Milton Montenegro},  year={2012},  month={Jul},  pages={424–430} }