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\bibitem{Crockett_etal2010} Crockett, N. R., Bergin, E. A., Wang, S., Lis, D. C., Bell, T. A., Blake, G. A., et al. (2010). Herschel observations of EXtra-Ordinary Sources (HEXOS): The Terahertz spectrum of Orion KL seen at high spectral resolution. \textit{Annual Rev. Astron. Astrophys.}, \textit{521}, L21 (1 to 5).

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