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\bibitem{Hole_etal1995} {\textquotedblleft}\textit{Gallium colloid formation during ion implantation of glass}{\textquotedblright}. Hole DE, Townsend PD, Barton JD, Nistor LC, van Landuyt J, Journal of non-crystalline solids \textbf{180}, 266 (1995).   http://doi.org/10.1016/0022-3093(94)00477-3

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