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\bibitem{Moshkova_etal2019} Moshkova, M., Divochiy, A., Morozov, P., Vakhtomin, Y., Antipov, A., Zolotov, P., et al. (2019). High-performance superconducting photon-number-resolving detectors with 86\% system efficiency at telecom range. \textit{J. Opt. Soc. Am. B}, \textit{36}(3), B20.

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