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\bibitem{Lavor_etal2020} {\textquotedblleft}\textit{Magnetic field induced vortices in graphene quantum dots}{\textquotedblright}. Lavor IR, da Costa DR, Chaves A, Farias GA, Macedo R, Peeters FM, Journal Of Physics-Condensed Matter \textbf{32}, 155501 (2020).   http://doi.org/10.1088/1361-648X/AB6463

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