@Article{acpd-4-3419-2004,
AUTHOR = {Butler, T. M. and Simmonds, I. and Rayner, P. J.},
TITLE = {Mass balance inverse modelling of methane in the 1990s using a Chemistry Transport Model},
JOURNAL = {Atmospheric Chemistry and Physics Discussions},
VOLUME = {4},
YEAR = {2004},
NUMBER = {3},
PAGES = {3419--3483},
URL = {http://www.atmos-chem-phys-discuss.net/4/3419/2004/},
DOI = {10.5194/acpd-4-3419-2004}
}