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\bibitem{Bals_etal2011} {\textquotedblleft}\textit{Three-dimensional atomic imaging of colloidal core-shell nanocrystals}{\textquotedblright}. Bals S, Casavola M, van Huis MA, Van Aert S, Batenburg KJ, Van Tendeloo G, Vanmaekelbergh D, Nano letters \textbf{11}, 3420 (2011).   http://doi.org/10.1021/nl201826e

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