Biblio
Critical Levels for Ammonia. Atmospheric Ammonia. :375-382.
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2009. Long-term nitrogen deposition increases phosphorus limitation of bryophytes in an ombrotrophic bog. Plant Ecology. 196:111-121.
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2008. Long-term nitrogen deposition increases phosphorus limitation of bryophytes in an ombrotrophic bog. Plant Ecology. 196(1):111-121.
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2008. A review and application of the evidence for nitrogen impacts on ecosystem services. Ecosystem Services. 7:76-88.
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2014. Terrestrial Umbrella– Effects of Eutrophication and Acidification on Terrestrial Ecosystems.. Terrestrial Umbrella Final Report.
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2007. .
2008.