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\bibitem{Ignatova_etal2002} {\textquotedblleft}\textit{Observation of Sb203 nanocrystals in SiO2 after Sb ion implantation}{\textquotedblright}. Ignatova VA, Lebedev OI, W{\"a}tjen U, van Vaeck L, van Landuyt J, Gijbels R, Adams F, Microchimica acta \textbf{139}, 77 (2002).   http://doi.org/10.1007/s006040200043

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