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Literatur
Michel AK, Prescher A-K, Schwärzel K (eds) (2020) Forest Condition in Europe : The 2020 Assessment ; ICP Forests Technical Report under the UNECE Convention on Long-range Transboundary Air Pollution (Air Convention). Eberswalde: Thünen Institute of Forest Ecosystems, 98 p, ICP Forests Techn Rep 2020, DOI:10.3220/ICPTR1606916913000
