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\bibitem{Smits_etal2014} {\textquotedblleft}\textit{Effect of process parameters on the photocatalytic soot degradation on self-cleaning cementitious materials}{\textquotedblright}. Smits M, Huygh D, Craeye B, Lenaerts S, Catalysis today \textbf{230}, 250 (2014).   http://doi.org/10.1016/J.CATTOD.2013.10.001

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