Moreno, R., Lellouch, E., Lara, L. M., Feuchtgruber, H., Rengel, M., Hartogh, P., et al. (2012). The abundance, vertical distribution and origin of H2O in Titan’s atmosphere: Herschel observations and photochemical modelling. Icarus, 221(2), 753-767. doi:10.1016/j.icarus.2012.09.006.