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\bibitem{Verheyen_etal2012} {\textquotedblleft}\textit{Design of zeolite by inverse sigma transformation}{\textquotedblright}.  Verheyen E, Joos L, Van Havenbergh K, Breynaert E, Kasian N, Gobechiya E, Houthoofd K, Martineau C, Hinterstein M, Taulelle F, Van Speybroeck V, Waroquier M, Bals S, Van Tendeloo G, Kirschhock CEA, Martens JA;, Nature materials \textbf{11}, 1059 (2012).   http://doi.org/10.1038/NMAT3455

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