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\bibitem{Smirnov_etal2019} Smirnov A, Golubev E, Arkhipov M, Filina E, Pyshnov V, Myshonkova N, et al. Millimetron Space Observatory: progress in the development of payload module. In: Proc. 30$^{th}$ Int. Symp. Space Terahertz Technol.; 2019. p. 180--1.

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