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\bibitem{Billet_etal2019} {\textquotedblleft}\textit{Mesoporous TiO$_{2}$ from poly(N,N-dimethylacrylamide)-b-polystyrene block copolymers for long-term acetaldehyde photodegradation}{\textquotedblright}. Billet J, Vandewalle S, Meire M, Blommaerts N, Lommens P, Verbruggen SW, De Buysser K, Du Prez F, Van Driesche I, Journal of materials science \textbf{55}, 1933 (2019).   http://doi.org/10.1007/S10853-019-04024-3

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