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\bibitem{Ignatova_etal2002} {\textquotedblleft}\textit{Metal and composite nanocluster precipitate formation in silicon dioxide implanted with Sb+ ions}{\textquotedblright}. Ignatova VA, Lebedev OI, Watjen U, van Vaeck L, van Landuyt J, Gijbels R, Adams F, Journal of applied physics \textbf{92}, 4336 (2002).   http://doi.org/10.1063/1.1508425

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