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\bibitem{Gerecht_etal1998} Gerecht E, Musante CF, Jian H, Yngvesson KS, Dickinson J, Waldman J, et al. Measured results for NbN phonon-cooled hot electron bolometric mixers at 0.6-0.75 THz, 1.56 THz, and 2.5 THz. In: Proc. 9$^{th}$ Int. Symp. Space Terahertz Technol.; 1998. p. 105--14.

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