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\bibitem{Marsili_etal2009} Marsili, F., Bitauld, D., Fiore, A., Gaggero, A., Leoni, R., Mattioli, F., et al. (2009). Superconducting parallel nanowire detector with photon number resolving functionality. \textit{J. Modern Opt.}, \textit{56}(2-3), 334--344.

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