%0 Generic %D 2010 %T Below-ground carbon allocation in mature beech and spruce trees following long-term, experimentally enhanced O3 exposure in Southern Germany %A Anderson, C.P. %A Ritter, W. %A Gregg, J. %A Matyssek, R. %A Grams, T.E.E. %B Environmental Pollution %V 158 %P 2604-2609 %G eng