%0 Journal Article %T Seasonal changes of CO 2 , CH 4 , N 2 O, and SF 6 in the upper troposphere/lower stratosphere over the Eurasian continent observed by commercial airliner %A Sawa, Yousuke %A Machida, Toshinobu %A Matsueda, Hidekazu %A Niwa, Yosuke %A Tsuboi, Kazuhiro %A Murayama, Shohei %A Morimoto, Shinji %A Aoki, Shuji %J Geophysical Research Letters %V 42 %N 6 %P 2001-2008 %@ 0094-8276 %D 2015-03-28 %I Wiley Subscription Services, Inc., A Wiley Company %~ DeepDyve