@Article{acpd-8-489-2008,
AUTHOR = {Levine, J. G. and Braesicke, P. and Harris, N. R. P. and Pyle, J. A.},
TITLE = {Seasonal and inter-annual variations in Troposphere-to-Stratosphere Transport from the Tropical Tropopause Layer},
JOURNAL = {Atmospheric Chemistry and Physics Discussions},
VOLUME = {8},
YEAR = {2008},
NUMBER = {1},
PAGES = {489--520},
URL = {http://www.atmos-chem-phys-discuss.net/8/489/2008/},
ISSN = {1680-7367}
}