Geiser, L. H., S. E. Jovan, D. A. Glavich, and M. K. Porter (2010), Lichen-based critical loads for atmospheric nitrogen deposition in Western Oregon and Washington Forests, USA, Environ. Poll., 158, 2412-2421.
Geiser, L. H., S. E. Jovan, D. A. Glavich, and M. K. Porter (2010), Lichen-based critical loads for atmospheric nitrogen deposition in Western Oregon and Washington Forests, USA, Environ. Poll., 158, 2412-2421.