@Article{acp-11-817-2011,
AUTHOR = {Birner, T. and B\"onisch, H.},
TITLE = {Residual circulation trajectories and transit times into the extratropical lowermost stratosphere},
JOURNAL = {Atmospheric Chemistry and Physics},
VOLUME = {11},
YEAR = {2011},
NUMBER = {2},
PAGES = {817--827},
URL = {http://www.atmos-chem-phys.net/11/817/2011/},
DOI = {10.5194/acp-11-817-2011}
}