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\bibitem{Nistor_etal1993} {\textquotedblleft}\textit{Colloid size distributions in ion implanted glass}{\textquotedblright}. Nistor LC, van Landuyt J, Barton JD, Hole DE, Skelland ND, Townsend PD, Journal of non-crystalline solids \textbf{162}, 217 (1993).   http://doi.org/10.1016/0022-3093(93)91240-4

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