Van Dishoeck, Ewine F. Infrared and Submillimeter Astronomy, MPI for Extraterrestrial Physics, Max Planck Society;
Bottinelli, S., Adwin Boogert, A. C., Bouwman, J., Beckwith, M., Van Dishoeck, E. F., Öberg, K. I., et al. (2010). The c2d Spitzer spectroscopic survey of ices around low-mass young stellar objects - IV. NH3 and CH3OH. The Astrophysical Journal, 718(2), 1100-1117. doi:10.1088/0004-637X/718/2/1100.