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\bibitem{Huebers_etal2002} H{\"u}bers, H. - W., Semenov, A., Richter, H., Smirnov, K., Gol{\textquoteright}tsman, G., \& Voronov, B. (2002). Phonon cooled far-infrared hot electron bolometer mixer. In \textit{NASA/ADS}.

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