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\bibitem{Stevens_etal2006} Stevens, M., Hadfield, R., Schwall, R., Nam, S. W., Mirin, R., \& Gupta, J. (2006). Fast lifetime measurements of infrared emitters using a low-jitter superconduct- ing single-photon detector. \textit{Appl. Phys. Lett.}, \textit{89}, 031109.

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