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\bibitem{Kurochkin_etal2015} Kurochkin, V. L., Zverev, A. V., Kurochkin, Y. V., Ryabtsev, I. I., Neizvestnyi, I. G., Ozhegov, R. V., et al. (2015). Long-distance fiber-optic quantum key distribution using superconducting detectors. In \textit{Proc. Optoelectron. Instrum.} (Vol. 51, pp. 548--552).

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