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\bibitem{Ao_etal2015} {\textquotedblleft}\textit{Enhancement of the stability of fluorine atoms on defective graphene and at graphene/fluorographene interface}{\textquotedblright}. Ao Z, Jiang Q, Li S, Liu H, Peeters FM, Li S, Wang G, ACS applied materials and interfaces \textbf{7}, 19659 (2015).   http://doi.org/10.1021/acsami.5b04319

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