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\bibitem{Tarkhov_etal2006} Tarkhov, M., Morozov, D., Mauskopf, P., Seleznev, V., Korneev, A., Kaurova, N., et al. (2006). Single photon counting detector for THz radioastronomy. In \textit{Proc. 17$^{th}$ Int. Symp. Space Terahertz Technol.} (pp. 119--122).

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