Visible and microscopic injury in leaves of 5 deciduous tree species related to current critical ozone levels

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Günthardt-Goerg, M. S., McQuattie, C. J., Mathies, D., & Frey, B. (1999). Visible and microscopic injury in leaves of 5 deciduous tree species related to current critical ozone levels. In J. Fuhrer & B. Achermann (Eds.), Environmental documentation: Vol. 115. Critical levels for ozone - level II (pp. 181-185). Swiss Agency for the Environment, Forest and Landscape SAEFL.