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\bibitem{Pan_etal2004} Pan, S. K., A. R. Kerr, M. W. P., Lauria, E. F., Crady, W. K., Horner, N., Srikanth, J. S., et al. (2004). A fixed-tuned integrated SIS mixer with ultra-wideband IF and quantum-limited sensitivity for ALMA band 3 (84-116 GHz) receivers. In \textit{Proc. 15$^{th}$ Int. Symp. Space Terahertz Technol.} (pp. 55--61). Northampton, MA.

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