Rezac, L., Kutepov, A. A., Faure, A., Hartogh, P., & Feofilov, A. G. (2013). Rotational non-LTE in HCN in the thermosphere of Titan: Implications for the radiative cooling. Astronomy and Astrophysics, 555: A122. doi:10.1051/0004-6361/201321231.