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\bibitem{Papp+Peeters2004} {\textquotedblleft}\textit{Giant magnetoresistance in a two-dimensional electron gas modulated by magnetic barriers}{\textquotedblright}. Papp G, Peeters FM, Journal of physics : condensed matter \textbf{16}, 8275 (2004).   http://doi.org/10.1088/0953-8984/16/46/014

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