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\bibitem{Felten_etal2007} {\textquotedblleft}\textit{Effect of oxygen rf-plasma on electronic properties of CNTs}{\textquotedblright}. Felten A, Ghijsen J, Pireaux J-J, Johnson RL, Whelan CM, Liang D, Van Tendeloo G, Journal of physics: D: applied physics \textbf{40}, 7379 (2007).   http://doi.org/10.1088/0022-3727/40/23/019

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