New constraints on the CH4 vertical profile in Uranus and Neptune from Herschel observationsE. Lellouch, R. Moreno, G. S. Orton, H. Feuchtgruber, T. Cavalié, J. I. Moses, P. Hartogh, C. Jarchow and H. SagawaA&A, 579 (2015) A121DOI: https://doi.org/10.1051/0004-6361/201526518