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Invertebrate Biodiversity in Northern Hardwood Ecosystems under Varying Disturbance Regimes. Beech Bark Disease: Proceedings of the Beech Bark Disease Symposium. Gen. Tech. Rep. NE-331:88-91.. 2005.
Ion leaching in forest ecosystems along a Great Lakes air pollution gradient. Journal of Environmental Quality. 21(4):614-623.. 1992.