Constraints on Titan's middle atmosphere ammonia abundance from Herschel/SPIRE sub-millimetre spectra (Planetary and Space Science, 2013)

(untitled) - Teanby, N; Irwin, P; Nixon, C; Courtin, R; Swinyard, B; Moreno, R; Lellouch, E; Rengel, M; Hartogh, P