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\bibitem{McCarthy_etal2013} McCarthy, A., Krichel, N. J., Gemmell, N. R., Ren, X., Tanner, M. G., Dorenbos, S. N., et al. (2013). Kilometer-range, high resolution depth imaging via 1560 nm wavelength single-photon detection. \textit{Opt. Express}, \textit{21}(7), 8904--8915.

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