@article{chetouani_2008,  title={Design of a multi-model observer-based estimator for Fault Detection and Isolation (FDI) strategy: application to a chemical reactor},  volume={25},  ISSN={0104-6632},  url={https://doi.org/10.1590/S0104-66322008000400015},  DOI={10.1590/S0104-66322008000400015},  number={4},  journal={Brazilian Journal of Chemical Engineering},  publisher={Brazilian Society of Chemical Engineering},  author={Chetouani, Y.},  year={2008},  month={Oct},  pages={777–788} }