@article {1420, title = {Below-ground carbon allocation in mature beech and spruce trees following long-term, experimentally enhanced O3 exposure in Southern Germany}, journal = {Environmental Pollution }, volume = {158}, year = {2010}, pages = {2604-2609}, author = {Anderson, C.P. and Ritter, W. and Gregg, J. and Matyssek, R. and Grams, T.E.E.} }