Columbia subject headings:
Acid soils--Fichtelgebirge (Germany and Czech Republic)
Forest declines--Fichtelgebirge (Germany and Czech Republic)
Forest ecology--Fichtelgebirge (Germany and Czech Republic)
Norway spruce--Ecology--Fichtelgebirge (Germany and Czech Republic)
Norway spruce--Effect of air pollution on--Fichtelgebirge (Germany and Czech Republic)
Soil ecology--Fichtelgebirge (Germany and Czech Republic)
Harvard subject headings:
Acid soils--Fichtelgebirge (Germany and Czech Republic)
Forest declines--Fichtelgebirge (Germany and Czech Republic)
Forest ecology--Fichtelgebirge (Germany and Czech Republic)
Norway spruce--Ecology--Fichtelgebirge (Germany and Czech Republic)
Norway spruce--Effect of air pollution on--Fichtelgebirge (Germany and Czech Republic)
Soil ecology--Fichtelgebirge (Germany and Czech Republic)
Princeton subject headings:
Acid soils--Fichtelgebirge (Germany and Czechoslovakia).
Forest declines--Fichtelgebirge (Germany and Czechoslovakia).
Forest ecology--Fichtelgebirge (Germany and Czechoslovakia).
Norway spruce--Fichtelgebirge (Germany and Czechoslovakia)--Ecology.
Norway spruce--Fichtelgebirge (Germany and Czechoslovakia)--Effect of air pollution on.
Soil ecology--Fichtelgebirge (Germany and Czechoslovakia).