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\bibitem{Bernaerts_etal1997} {\textquotedblleft}\textit{Electron microscopy of carbon nanotubes and related structures}{\textquotedblright}. Bernaerts D, Amelinckx S, Van Tendeloo G, van Landuyt J, The journal of physics and chemistry of solids \textbf{58}, 1807 (1997).   http://doi.org/10.1016/S0022-3697(98)80003-6

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