@Article{acp-8-6189-2008,
AUTHOR = {Kawagucci, S. and Tsunogai, U. and Kudo, S. and Nakagawa, F. and Honda, H. and Aoki, S. and Nakazawa, T. and Tsutsumi, M. and Gamo, T.},
TITLE = {Long-term observation of mass-independent oxygen isotope anomaly in stratospheric CO$_{2}$},
JOURNAL = {Atmospheric Chemistry and Physics},
VOLUME = {8},
YEAR = {2008},
NUMBER = {20},
PAGES = {6189--6197},
URL = {http://www.atmos-chem-phys.net/8/6189/2008/},
ISSN = {1680-7316}
}