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\bibitem{Tytgat_etal2014} {\textquotedblleft}\textit{Immobilization of TiO$_{2}$ into self-supporting photocatalytic foam : influence of calcination temperature}{\textquotedblright}. Tytgat T, Smits M, Lenaerts S, Verbruggen SW, International journal of applied ceramic technology \textbf{11}, 714 (2014).   http://doi.org/10.1111/IJAC.12086

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