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\bibitem{Li_etal2010} {\textquotedblleft}\textit{Chemistry of trimethyl aluminum: a spontaneous route to thermally stable 3D crystalline macroporous alumina foams with a hierarchy of pore sizes}{\textquotedblright}. Li Y, Yang X-Y, Tian G, Vantomme A, Yu J, Van Tendeloo G, Su B-L, Chemistry of materials \textbf{22}, 3251 (2010).   http://doi.org/10.1021/cm100491r

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