Gerecht, E., Musante, C. F., Jian, H., Yngvesson, K. S., Dickinson, J., Waldman, J., et al. (1998). Measured results for NbN phonon-cooled hot electron bolometric mixers at 0.6-0.75 THz, 1.56 THz, and 2.5 THz. In _Proc. 9<sup>th</sup> Int. Symp. Space Terahertz Technol._ (pp. 105&ndash;114).