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\bibitem{Godefroo_etal2008} {\textquotedblleft}\textit{Classification and control of the origin of photoluminescence from Si nanocrystals}{\textquotedblright}. Godefroo S, Hayne M, Jivanescu M, Stesmans A, Zacharias M, Lebedev OI, Van Tendeloo G, Moshchalkov VV, Nature nanotechnology \textbf{3}, 174 (2008).   http://doi.org/10.1038/nnano.2008.7

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