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\bibitem{Lin_etal2015} {\textquotedblleft}\textit{Direct-synthesis method towards copper-containing periodic mesoporous organosilicas : detailed investigation of the copper distribution in the material}{\textquotedblright}. Lin F, Meng, Kukueva E, Altantzis T, Mertens M, Bals S, Cool P, Van Doorslaer S, Journal of the Chemical Society : Dalton transactions \textbf{44}, 9970 (2015).   http://doi.org/10.1039/c4dt03719g

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