Van Dishoeck, E. F. Infrared and Submillimeter Astronomy, MPI for Extraterrestrial Physics, Max Planck Society;
San José-García, I., Mottram, J. C., Kristensen, L. E., Van Dishoeck, E. F., Yıldız, U. A., van der Tak, F. F. S., et al. (2013). Herschel-HIFI observations of high-J CO and isotopologues in star-forming regions: from low to high mass. Astronomy & Astrophysics, 553: A125, pp. 1-29. doi:10.1051/0004-6361/201220472.