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\bibitem{Zhang_etal1994} {\textquotedblleft}\textit{The reciprocal space of carbon tubes: a detailed interpretation of the electron diffraction effects}{\textquotedblright}. Zhang XB, Zhang XF, Amelinckx S, Van Tendeloo G, van Landuyt J, Ultramicroscopy \textbf{54}, 237 (1994).   http://doi.org/10.1016/0304-3991(94)90123-6

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