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\bibitem{Komendova_etal2012} {\textquotedblleft}\textit{Two-band superconductors : hidden criticality deep in the superconducting state}{\textquotedblright}. Komendov{\'a} L, Chen Y, Shanenko AA, Milo{\v s}evi{\'c} MV, Peeters FM, Physical review letters \textbf{108}, 207002 (2012).   http://doi.org/10.1103/PhysRevLett.108.207002

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