| Title | Authors | Year | 
|---|---|---|
| Lichen Recolonization in London under Conditions of Rapidly Falling Sulfur-Dioxide Levels, and the Concept of Zone Skipping. | 
                               Hawksworth…  | 
                                                                                        1989 | 
| Unifying nutrient-chlorophyll relationships in lakes. | 
                               Prairie, Y.…  | 
                                                                                        1989 | 
| The acidification of Scottish lochs | 
                               Battarbee,…  | 
                                                                                        1989 | 
| Indigenous and cultivated plants as bioindicators | 
                               Weinstein,…  | 
                                                                                        1989 | 
| 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 | 
| Acid rain and eggshells | 
                               Drent, P.J…  | 
                                                                                        1989 | 
| Acidification and Otter (Lutra lutra) Distribution in Scotland | 
                               Mason, C.F…  | 
                                                                                        1989 | 
| A comparison of plant toxicities of some industrial chemicals in soil culture and soilless culture | 
                               Adema, D ;…  | 
                                                                                        1989 | 
| Effects of N-emissions on nutrient status and vitality of Pinus sylvestris near a hen house. | 
                               …  | 
                                                                                        1989 | 
| Global Emissions of Nitrogen and Sulfur-Oxides from 1860 to 1980 | 
                               Dignon, J…  | 
                                                                                        1989 |