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\bibitem{Yagoubov_etal2001} Yagoubov P, H{\"u}bers H-W, Gol{\textquoteright}tsman G, Semenov A, Gao J, Hoogeveen R, et al. Hot-electron bolometer mixers -- technology for far-infrared heterodyne instruments in future atmospheric chemistry missions. In: Buehler S, Berlin, editors. Proc. 3rd Int. Symp. Submillimeter Wave Earth Observation From Space. Logos-Verlag; 2001. p. 57--69.

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