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\bibitem{Peelaers_etal2011} {\textquotedblleft}\textit{Vibrational properties of graphene fluoride and graphane}{\textquotedblright}. Peelaers H, Hern{\'a}ndez-Nieves AD, Leenaerts O, Partoens B, Peeters FM, Applied physics letters \textbf{98}, 051914 (2011).   http://doi.org/10.1063/1.3551712

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