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\bibitem{Svechnikov_etal1997} Svechnikov SI, Okunev OV, Yagoubov PA, Gol{\textquoteright}tsman GN, Voronov BM, Cherednichenko SI, et al. 2.5 THz NbN hot electron mixer with integrated tapered slot antenna. IEEE Trans Appl Supercond. 1997;7(2):3548--51.

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