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\bibitem{Ludu_etal2010} {\textquotedblleft}\textit{Analytic treatment of vortex states in cylindrical superconductors in applied axial magnetic field}{\textquotedblright}. Ludu A, Van Deun J, Milo{\v s}evi{\'c} MV, Cuyt A, Peeters FM, Journal of mathematical physics \textbf{51}, 082903 (2010).   http://doi.org/10.1063/1.3470767

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