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\bibitem{vanWalsem_etal2019} {\textquotedblleft}\textit{Proof of concept of an upscaled photocatalytic multi-tube reactor : a combined modelling and experimental study}{\textquotedblright}. van Walsem J, Roegiers J, Modde B, Lenaerts S, Denys S, Chemical engineering journal \textbf{378}, 122038 (2019).   http://doi.org/10.1016/J.CEJ.2019.122038

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