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\bibitem{Dong_etal2008} {\textquotedblleft}\textit{Quantum and transport conductivities in monolayer graphene}{\textquotedblright}. Dong HM, Xu W, Zeng Z, Lu TC, Peeters FM, Physical review : B : condensed matter and materials physics \textbf{77}, 235402 (2008).   http://doi.org/10.1103/PhysRevB.77.235402

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