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\bibitem{Seftel_etal2008} {\textquotedblleft}\textit{Sn$^{IV}$-containing layered double hydroxides as precursors for nano-sized ZnO/SnO$_{2}$ photocatalysts}{\textquotedblright}. Seftel EM, Popovici E, Mertens M, Stefaniak EA, Van Grieken R, Cool P, Vansant EF, Applied catalysis : B : environmental \textbf{84}, 699 (2008).   http://doi.org/10.1016/J.APCATB.2008.06.006

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