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\bibitem{Ryabchun_etal2009} Ryabchun, S., Tong, C. - Y. E., Blundell, R., \& Gol{\textquoteright}tsman, G. (2009). Stabilization scheme for hot-electron bolometer receivers using microwave radiation. \textit{IEEE Trans. Appl. Supercond.}, \textit{19}(1), 14--19.

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