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\bibitem{Klaassen_etal2004} Klaassen, T. O., Hovenier, J. N., Adam, A. J. L., Fischer, J., Jakob, G., Poglitsch, A., et al. (2004). Terahertz calorimetry for the Herschel Space Observatory. In \textit{Proc. 29th IRMMW / 12th THz} (pp. 815--816).

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