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\bibitem{Furugen_etal2007} {\textquotedblleft}\textit{Fluxoid state transitions in mesoscopic superconducting rings: effect of geometrical symmetry}{\textquotedblright}. Furugen R, Kanda A, Vodolazov DY, Baelus BJ, Ootuka Y, Peeters F, Physica: C : superconductivity \textbf{463}, 251 (2007).   http://doi.org/10.1016/j.physc.2007.04.230

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