%0 Journal Article %T Belowground competition and the response of developing forest communities to atmospheric CO 2 and O 3 %A ZAK, DONALD R. %A HOLMES, WILLIAM E. %A PREGITZER, KURT S. %A KING, JOHN S. %A ELLSWORTH, DAVID S. %A KUBISKE, MARK E. %J Global Change Biology %V 13 %N 10 %@ 1354-1013 %D 2007-10-01 %I Wiley Subscription Services, Inc., A Wiley Company %~ DeepDyve