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\bibitem{Lebedev_etal2005} {\textquotedblleft}\textit{First direct imaging of giant pores of the metal-organic framework MIL-101}{\textquotedblright}. Lebedev OI, Millange F, Serre C, Van Tendeloo G, F{\'e}rey G, Chemistry of materials \textbf{17}, 6525 (2005).   http://doi.org/10.1021/cm051870o

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