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\bibitem{Costamagna_etal2012} {\textquotedblleft}\textit{Partially unzipped carbon nanotubes as magnetic field sensors}{\textquotedblright}. Costamagna S, Schulz A, Covaci L, Peeters F, Applied physics letters \textbf{100}, 232104 (2012).   http://doi.org/10.1063/1.4726039

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