Title Authors Year
Seasonal changes in amino acids, protein and total nitrogen in needles of fertilised Scots pine trees

Näsholm, T…

1990
Exchange of greenhouse gases between terrestrial ecosystems and the atmosphere

Bouwman, A.…

1990
Calculated rates of soil acidification of intensively used grassland in the Netherlands.

Oenema, O…

1990
Effects of ammonia, ammonium sulphate and sulphur dioxide on the frost sensitivity of Scots pine (Pinus sylvestris L.)

Dueck, T.A…

1990
Effects of SO2, NO2, and O3 on Population Development and Morphological and Physiological Parameters of Native Herb Layer Species in a Beech Forest.

Steubing, L…

1989
Indigenous and cultivated plants as bioindicators

Weinstein,…

1989
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
Acid rain and eggshells

Drent, P.J…

1989
Environmental Health Criteria 85 Lead- Environmental Aspects

WHO,

 		1989