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\bibitem{Tretyakov_etal2011} Tretyakov, I., Ryabchun, S., Finkel, M., Maslennikov, S., Maslennikova, A., Kaurova, N., et al. (2011). Ultrawide noise bandwidth of NbN hot-electron bolometer mixers with in situ gold contacts. \textit{IEEE Trans. Appl. Supercond.}, \textit{21}(3), 620--623.

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