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\bibitem{Luyten_etal1994} {\textquotedblleft}\textit{Electron microscopy and energy-loss spectroscopy of voidites in pure IaB diamonds}{\textquotedblright}. Luyten W, Van Tendeloo G, Fallon PJ, Woods GS, Philosophical magazine: A: physics of condensed matter: defects and mechanical properties \textbf{69}, 767 (1994).   http://doi.org/10.1080/01418619408242517

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