%0 Generic %D 2001 %T Ozone exposure thresholds and foliar injury on forest plants in Switzerland. %A VanderHayden, D. %A Skelly, J. %A Innes, J. %A Hug, C. %A Zhang, J. %A Landolt, W. %A Bleuler, P. %B Environmental Pollution %V 111 %P 321-331 %G eng %N 2