@article{mendes_machado_rizol_2019,  title={FUZZY CONTROL CHART FOR MONITORING MEAN AND RANGE OF UNIVARIATE PROCESSES},  volume={39},  ISSN={0101-7438},  url={https://doi.org/10.1590/0101-7438.2019.039.02.0339},  DOI={10.1590/0101-7438.2019.039.02.0339},  number={2},  journal={Pesquisa Operacional},  publisher={Sociedade Brasileira de Pesquisa Operacional},  author={Mendes, Amanda dos Santos and Machado, Marcela A. G. and Rizol, Paloma M. S. Rocha},  year={2019},  month={May},  pages={339–357} }