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\bibitem{Yang_etal2010} {\textquotedblleft}\textit{Landau-level broadening due to electron-impurity interaction in graphene in strong magnetic fields}{\textquotedblright}. Yang CH, Peeters FM, Xu W, Physical review : B : condensed matter and materials physics \textbf{82}, 075401:1 (2010).   http://doi.org/10.1103/PhysRevB.82.075401

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