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\bibitem{Goltsman_etal1995} Gol{\textquoteright}tsman, G. N., Karasik, B. S., Okunev, O. V., Dzardanov, A. L., Gershenzon, E. M., Ekstrom, H., et al. (1995). NbN hot electron superconducting mixers for 100 GHz operation. \textit{IEEE Trans. Appl. Supercond.}, \textit{5}(2), 3065--3068.

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