@Article{acp-11-6167-2011,
AUTHOR = {Angelbratt, J. and Mellqvist, J. and Blumenstock, T. and Borsdorff, T. and Brohede, S. and Duchatelet, P. and Forster, F. and Hase, F. and Mahieu, E. and Murtagh, D. and Petersen, A. K. and Schneider, M. and Sussmann, R. and Urban, J.},
TITLE = {A new method to detect long term trends of methane (CH$_{4}$) and nitrous oxide (N$_{2}$O) total columns measured within the NDACC ground-based high resolution solar FTIR network},
JOURNAL = {Atmospheric Chemistry and Physics},
VOLUME = {11},
YEAR = {2011},
NUMBER = {13},
PAGES = {6167--6183},
URL = {http://www.atmos-chem-phys.net/11/6167/2011/},
DOI = {10.5194/acp-11-6167-2011}
}