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\bibitem{Freire_etal2001} {\textquotedblleft}\textit{Exciton trapping in a hybrid ferromagnetic/semiconductor magnetic antidot}{\textquotedblright}. Freire JAK, Matulis A, Peeters FM, Freire VN, Farias GA, Journal of magnetism and magnetic materials \textbf{226/230}, 2038 (2001).   http://doi.org/10.1016/S0304-8853(00)01081-7

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