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\bibitem{Sobolewski_etal2003} Sobolewski, R., Zhang, J., Slysz, W., Pearlman, A., Verevkin, A., Lipatov, A., et al. (2003). Ultrafast superconducting single-photon optical detectors. In J. Spigulis, J. Teteris, M. Ozolinsh, \& A. Lusis (Eds.), \textit{Proc. SPIE} (Vol. 5123, pp. 1--11). SPIE.

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