| Title | Authors | Year | 
|---|---|---|
| Forest soil chemical changes between 1949-50 and 1987 | 
                               Billett, M.…  | 
                                                                                        1990 | 
| Calculated rates of soil acidification of intensively used grassland in the Netherlands. | 
                               Oenema, O…  | 
                                                                                        1990 | 
| Exchange of greenhouse gases between terrestrial ecosystems and the atmosphere | 
                               Bouwman, A.…  | 
                                                                                        1990 | 
| Air pollution and tree-dwelling aphids. Population Dynamics of Forest Insects | 
                               McNeill, S…  | 
                                                                                        1990 | 
| On the use of mosses (Hylocomium splendens and Pleurozium schreberi) for estimating atmospheric trace metal deposition | 
                               Ross, H.B…  | 
                                                                                        1990 | 
| Bryophytes and Nutrient Cycling | 
                               Brown, D.H…  | 
                                                                                        1990 | 
| Mechanism of toxicity of zinc to the marine diatom Nitzschia closterium | 
                               Stauber, J…  | 
                                                                                        1990 | 
| Fresh-water acidification - its effects on species and communities of fresh-water microbes, plants and animals | 
                               Muniz, I.P…  | 
                                                                                        1990 | 
| Yield Responses of Different Crop Species to Long-Term Fumigation with Sulphur Dioxide in Open-Top Chambers | 
                               Weigel, H.J…  | 
                                                                                        1990 | 
| Fine Root Studies in situ and in the Laboratory. | 
                               Wollmer, H…  | 
                                                                                        1990 |