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\bibitem{Wu_etal2011} {\textquotedblleft}\textit{Valley-dependent brewster angles and Goos-H{\"a}nchen effect in strained graphene}{\textquotedblright}. Wu Z, Zhai F, Peeters FM, Xu HQ, Chang K, Physical review letters \textbf{106}, 176802 (2011).   http://doi.org/10.1103/PhysRevLett.106.176802

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