| Title | Authors | Year | 
|---|---|---|
| Cation-exchange properties and adaptation to soil acidity in bryophytes | 
                               Buscher, P…  | 
                                                                                        1990 | 
| Cadmium uptake and toxicity to water hyacinth: effect of repeated exposures under controlled conditions | 
                               Nir, R ;…  | 
                                                                                        1990 | 
| Afforestation and Lake Acidification: A Comparison of Four Sites in Scotland. | 
                               Kreiser, A.…  | 
                                                                                        1990 | 
| The effect of air quality on tree growth. | 
                               Lee, H.S.J…  | 
                                                                                        1990 | 
| Bryophytes and heavy metals: a literature review | 
                               Tyler, G.…  | 
                                                                                        1990 | 
| Phytoavailability and toxicity of beryllium and vanadium | 
                               Kaplan, D…  | 
                                                                                        1990 | 
| Growth Dynamics of Wheat (Triticum aestivum L.) Exposed to Sulfur Dioxide Pollution. | 
                               Lorenzini,…  | 
                                                                                        1990 | 
| Successional changes in the soft-water macrophyte vegetation of (sub)atlantic, sandy, lowland regions during this century | 
                               Arts, G.H.P…  | 
                                                                                        1990 | 
| Calculated rates of soil acidification of intensively used grassland in the Netherlands. | 
                               Oenema, O…  | 
                                                                                        1990 | 
| Bryophytes and Nutrient Cycling | 
                               Brown, D.H…  | 
                                                                                        1990 |