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\bibitem{Michel_etal2005} {\textquotedblleft}\textit{Mercator maps of orientations of a C$_{60}$ molecule in single-walled nanotubes with distinct radii}{\textquotedblright}. Michel KH, Verberck B, Nikolaev A, AIP conference proceedings \textbf{786}, 69 (2005)

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