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\bibitem{Milovanovic_etal2014} {\textquotedblleft}\textit{Magnetic electron focusing and tuning of the electron current with a pn-junction}{\textquotedblright}. Milovanovi{\'c} SP, Masir MR, Peeters FM, Journal of applied physics \textbf{115}, 043719 (2014).   http://doi.org/10.1063/1.4863403

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