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\bibitem{WiltonAgila_etal2019} Wilton Agila, Gomer Rubio, Francisco Vidal, \& B. Lima. (2019). Real time Qualitative Model for estimate Water content in PEM Fuel Cell. In \textit{8th International Conference on Renewable Energy Research and Applications (ICRERA 2019); Brasov, Rumania} (pp. 455--459).

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