CFC-11
. Corazza M, P. Bergamaschi, A. T. Vermeulen, T. Aalto, L. Haszpra, F. Meinhardt, S. O'Doherty, R. Thompson, J. Moncrieff, E. Popa, M. Steinbacher, A. Jordan, E. Dlugokencky, C. Brühl, M. Krol, and F. Dentener, Inverse modelling of European N2O emissions: Assimilating observations from different