Title Authors Year
Forest soil chemical changes between 1949-50 and 1987

Billett, M.…

1990
Lichen Physiology and Air-Pollution .2. Statistical-Analysis of the Correlation between SO2, NO2, NO and O3, and Chlorophyll Content, Net Photosynthesis, Sulfate Uptake and Protein- Synthesis of Parmelia-Sulcata Taylor

Von Arb, C…

1990
Cation-exchange properties and adaptation to soil acidity in bryophytes

Buscher, P…

1990
Successional changes in the soft-water macrophyte vegetation of (sub)atlantic, sandy, lowland regions during this century

Arts, G.H.P…

1990
Effects of N-emissions on nutrient status and vitality of Pinus sylvestris near a hen house.

…

1989
Results of the harmful effects of water pollutants to Daphnia magna in the 21 day Reproduction Test

Kühn, R ;…

1989
Effects of ammonia emission on epiphytic lichen vegetation

DeBakker, A…

1989
Environmental Health Criteria 85 Lead- Environmental Aspects

WHO,

 		1989
Water and the Environment. Circular 7/89

Department…

1989
Indigenous and cultivated plants as bioindicators

Weinstein,…

1989