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\bibitem{Slysz_etal2006} S{\l}ysz, W., W{\k e}grzecki, M., Bar, J., Grabiec, P., G{\'o}rska, M., Zwiller, V., et al. (2006). Fiber-coupled single-photon detectors based on NbN superconducting nanostructures for practical quantum cryptography and photon-correlation studies. \textit{Appl. Phys. Lett.}, \textit{88}(26), 261113 (1 to 3).

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