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\bibitem{An_etal2018} An, P., Kovalyuk, V., Golikov, A., Zubkova, E., Ferrari, S., Korneev, A., et al. (2018). Experimental optimisation of O-ring resonator Q-factor for on-chip spontaneous four wave mixing. In \textit{J. Phys.: Conf. Ser.} (Vol. 1124, 051047).

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