%0 Journal Article %T Leaf and canopy conductance in aspen and aspen-birch forests under free-air enrichment of carbon dioxide and ozone %A Uddling, Johan %A Teclaw, Ronald M. %A Pregitzer, Kurt S. %A Ellsworth, David S. %J Tree Physiology %V 29 %N 11 %P 1367-1380 %@ 0829-318X %D 2009-11-01 %I Oxford University Press %~ DeepDyve