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\bibitem{Kovalyuk_etal2018} Kovalyuk, V., Kahl, O., Ferrari, S., Vetter, A., Lewes-Malandrakis, G., Nebel, C., et al. (2018). On-chip single-photon spectrometer for visible and infrared wavelength range. In \textit{J. Phys.: Conf. Ser.} (Vol. 1124, 051045).

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