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\bibitem{Reiger_etal2007} Reiger, E., Pan, D., Slysz, W., Jukna, A., Sobolewski, R., Dorenbos, S., et al. (2007). Spectroscopy with nanostructured superconducting single photon detectors. \textit{IEEE J. Select. Topics Quantum Electron.}, \textit{13}(4), 934--943.

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