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\bibitem{Castelano_etal2009} {\textquotedblleft}\textit{Artificial molecular quantum rings under magnetic field influence}{\textquotedblright}. Castelano LK, Hai GQ, Partoens B, Peeters FM, Journal of applied physics \textbf{106}, 073702 (2009).   http://doi.org/10.1063/1.3223360

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