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\bibitem{Murk_etal2001} Murk, A., K{\"a}mpfer, N., Wylde, R., Inatani, J., Manabe, T., \& Seta, M. (2001). Characterization of various quasi-optical components for the submillimeter limb-sounder SMILES. In \textit{Proc. 12$^{th}$ Int. Symp. Space Terahertz Technol.} (pp. 426--435).

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