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\bibitem{Abdullah_etal2019} {\textquotedblleft}\textit{Electron collimation at van der Waals domain walls in bilayer graphene}{\textquotedblright}. Abdullah HM, da Costa DR, Bahlouli H, Chaves A, Peeters FM, Van Duppen B, Physical review B \textbf{100}, 045137 (2019).   http://doi.org/10.1103/PHYSREVB.100.045137

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