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\bibitem{AlbertBetz_etal2003} Albert Betz, Rita Boreiko, Yongdong Zhou, Jun Jhao, Yusuf Selamet, Yong Chang, et al. HgCdTe photoconductive mixers for 3-15 terahertz. In: Proc. 14$^{th}$ Int. Symp. Space Terahertz Technol. Tucson, USA; 2003. p. 102--11.

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