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\bibitem{Kuznetsov_etal2012} {\textquotedblleft}\textit{Preparation, structural and optical characterization of nanocrystalline ZnO doped with luminescent Ag-nanoclusters}{\textquotedblright}. Kuznetsov AS, Lu Y-G, Turner S, Shestakov MV, Tikhomirov VK, Kirilenko D, Verbeeck J, Baranov AN, Moshchalkov VV, Optical materials express \textbf{2}, 723 (2012).   http://doi.org/10.1364/OME.2.000723

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