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\bibitem{Smirnov_etal2015} Smirnov, K., Vachtomin, Y., Divochiy, A., Antipov, A., \& Goltsman, G. (2015). Dependence of dark count rates in superconducting single photon detectors on the filtering effect of standard single mode optical fibers. \textit{Appl. Phys. Express}, \textit{8}(2), 022501 (1 to 4).

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