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\bibitem{Fedina_etal1996} {\textquotedblleft}\textit{Observation of vacancy clustering in Si crystals during in situ electron irradiation in a high voltage electron microscope}{\textquotedblright}. Fedina L, van Landuyt J, Vanhellemont J, Aseev A, Materials Research Society symposium proceedings \textbf{404}, 189 (1996)

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