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\bibitem{Semenov_etal2004} Semenov, A., Richter, H., Smirnov, K., Voronov, B., Gol{\textquoteright}tsman, G., \& H{\"u}bers, H. - W. (2004). The development of terahertz superconducting hot-electron bolometric mixers. \textit{Supercond. Sci. Technol.}, \textit{17}(5), 436--439.

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